programs.js

export default [
  {
    name: "Chorus",
    categories: ["Chorus"],
    author: "Spin Semi",
    author_url: "http://spinsemi.com/",
    controls: ["Reverb", "Rate", "Level"],
    download: {
      spn: { file: "spinsemi/GA_DEMO_CHORUS.spn" },
    },
    application: "Guitar amplifier",
    source_url: "http://spinsemi.com/guitar_amp_application.html"
  },
  {
    name: "Echo with Repeats",
    categories: ["Delay"],
    author: "Spin Semi",
    author_url: "http://spinsemi.com/",
    controls: ["Reverb level", "Delay", "Echo level"],
    download: {
      spn: { file: "spinsemi/GA_DEMO_ECHO_RPT.spn" },
    },
    application: "Guitar amplifier",
    source_url: "http://spinsemi.com/guitar_amp_application.html"
  },
  {
    name: "Echo",
    categories: ["Delay"],
    author: "Spin Semi",
    author_url: "http://spinsemi.com/",
    controls: ["Reverb level", "Delay", "Echo level"],
    download: {
      spn: { file: "spinsemi/GA_DEMO_ECHO.spn" },
    },
    application: "Guitar amplifier",
    source_url: "http://spinsemi.com/guitar_amp_application.html"
  },
  {
    name: "Flanger",
    categories: ["Flanger"],
    author: "Spin Semi",
    author_url: "http://spinsemi.com/",
    controls: ["Reverb level", "Flange rate", "Effect level w/ feedback"],
    download: {
      spn: { file: "spinsemi/GA_DEMO_FLANGE.spn" },
    },
    application: "Guitar amplifier",
    source_url: "http://spinsemi.com/guitar_amp_application.html",
  },
  {
    name: "Phase shifter",
    categories: ["Phaser"],
    author: "Spin Semi",
    author_url: "http://spinsemi.com/",
    controls: ["Reverb", "Rate", "Width"],
    download: {
      spn: { file: "spinsemi/GA_DEMO_PHASE.spn" },
    },
    application: "Guitar amplifier",
    source_url: "http://spinsemi.com/guitar_amp_application.html"
  },
  {
    name: "Tremolo",
    categories: ["Tremolo"],
    controls: ["Reverb", "Rate", "Level"],
    author: "Spin Semi",
    author_url: "http://spinsemi.com/",
    download: {
      spn: { file: "spinsemi/GA_DEMO_TREM.spn" },
    },
    application: "Guitar amplifier",
    source_url: "http://spinsemi.com/guitar_amp_application.html"
  },
  {
    name: "Vibrato (after strike)",
    categories: ["Vibrato"],
    author: "Spin Semi",
    author_url: "http://spinsemi.com/",
    controls: ["Reverb", "Rate", "Width"],
    download: {
      spn: { file: "spinsemi/GA_DEMO_VIBRATO.spn" },
    },
    application: "Guitar amplifier",
    source_url: "http://spinsemi.com/guitar_amp_application.html"
  },
  {
    name: "Wah",
    categories: ["Wah"],
    author: "Spin Semi",
    author_url: "http://spinsemi.com/",
    controls: ["Reverb", "Sensitivity", "Filter Q / Level"],
    download: {
      spn: { file: "spinsemi/GA_DEMO_WAH.spn" },
    },
    application: "Guitar amplifier",
    source_url: "http://spinsemi.com/guitar_amp_application.html"
  },

  {
    name: "RMS limiter",
    description: "Approx 10dB limiting range, stereo I/O, common control (to maintain image)",
    categories: ["Code snippet"],
    author: "Spin Semi",
    author_url: "http://spinsemi.com/",
    download: {
      spn: { file: "spinsemi/rms_limiter.spn" },
    },
    application: "Code snippet",
    source_url: "http://spinsemi.com/programs.php"
  },
  {
    name: "RMS limiter/expander example",
    description: "Simple RMS limiter/expander example",
    categories: ["Code snippet"],
    author: "Spin Semi",
    author_url: "http://spinsemi.com/",
    download: {
      spn: { file: "spinsemi/rms_lim_exp.spn" },
    },
    application: "Code snippet",
    source_url: "http://spinsemi.com/programs.php"
  },
  {
    name: "Mini reverb",
    description: "Mini reverb example",
    categories: ["Code snippet", "Reverb"],
    author: "Spin Semi",
    author_url: "http://spinsemi.com/",
    download: {
      spn: { file: "spinsemi/min_rev1.spn" },
    },
    application: "Code snippet",
    controls: ["-", "-", "-"],
    source_url: "http://spinsemi.com/programs.php"
  },
  {
    name: "Soft knee RMS limiter",
    categories: ["Code snippet"],
    author: "Spin Semi",
    author_url: "http://spinsemi.com/",
    download: {
      spn: { file: "spinsemi/rms_soft_knee.spn" },
    },
    application: "Code snippet",
    source_url: "http://spinsemi.com/programs.php"
  },
  {
    name: "Simple limiter",
    description: "Simple limiter, -12dB threshold, peak detecting",
    categories: ["Code snippet"],
    author: "Spin Semi",
    author_url: "http://spinsemi.com/",
    download: {
      spn: { file: "spinsemi/simp_limiter.spn" },
    },
    application: "Code snippet",
    source_url: "http://spinsemi.com/programs.php"
  },
  {
    name: "+/-20dB gain/loss",
    description: "Example program for +/-20dB gain/loss",
    categories: ["Code snippet"],
    author: "Spin Semi",
    author_url: "http://spinsemi.com/",
    download: {
      spn: { file: "spinsemi/thru_gain.spn" },
    },
    application: "Code snippet",
    source_url: "http://spinsemi.com/programs.php"
  },
  {
    name: "Sine wave generator",
    description: "Sine wave generator, uses POT0 and POT1 for coarse and fine adjustment, POT2 for amplitude control",
    categories: ["Code snippet"],
    author: "Spin Semi",
    author_url: "http://spinsemi.com/",
    download: {
      spn: { file: "spinsemi/singen.spn" },
    },
    application: "Code snippet",
    source_url: "http://spinsemi.com/programs.php"
  },
  {
    name: "Battling LFOs",
    description: "What happens when one LFO controls another, and that controls another and that controls another and that controls the first one?",
    categories: ["Code snippet"],
    author: "Spin Semi",
    author_url: "http://spinsemi.com/",
    download: {
      spn: { file: "spinsemi/battling_lfos.spn" },
    },
    application: "Code snippet",
    source_url: "http://spinsemi.com/programs.php"
  },

  {
    name: "Active crossover",
    description: "Active cross-over program for speaker equalization. Multiple bands of parametric EQ, etc.",
    categories: ["Code snippet"],
    author: "Spin Semi",
    author_url: "http://spinsemi.com/",
    download: {
      spn: { file: "spinsemi/act_xover.spn" },
    },
    application: "Code snippet",
    source_url: "http://spinsemi.com/programs.php"
  },

  {
    name: "Reverb+HP+LP",
    description: "Reverb plus 2-pole high-pass and 2-pole low-pass",
    categories: ["Reverb","Filter"],
    controls: ["Reverb", "High Pass Filter", "Low Pass Filter"],
    author: "Dave Spinkler",
    download: {
      spn: { file: "spinsemi/dance_ir_h_l.spn" },
    },
    application: "Mixer",
    source_url: "http://spinsemi.com/programs.php"
  },
  {
    name: "Reverb+Flange+LP",
    description: "Reverb plus flange plus 4-pole low pass",
    categories: ["Reverb","Filter","Flanger"],
    author: "Dave Spinkler",
    controls: ["Reverb", "Flanger", "Low Pass Filter"],
    download: {
      spn: { file: "spinsemi/dance_ir_fla_l.spn" },
    },
    application: "Mixer",
    source_url: "http://spinsemi.com/programs.php",
    commentary: [
      {
        written_by: "Dave Spinkler",
        comments: { text: `;disco mixer program
;pot0 = reverb to infinity
;pot1 = flange; zero delay at full counter clockwise
;pot2 = low pass filter (4 pole)`}
      },
      {
        written_by: "Mark S.",
        comments: { text: "If you take the time to dial in the LP filter, and adjust the wet/dry mix, you can get some amazing sounds that have a rare blend of being both unusual and very usable." }
      },
    ],
  },
  {
    name: "Reverb+Pitch+LP",
    description: "Reverb plus pitch plus 4-pole low-pass",
    categories: ["Reverb","Pitch","Filter"],
    author: "Dave Spinkler",
    controls: ["Reverb", "Pitch", "Filter"],
    download: {
      spn: { file: "spinsemi/dance_ir_ptz_l.spn" },
    },
    application: "Mixer",
    source_url: "http://spinsemi.com/programs.php",
  },

  {
    name: "Hall Reverb",
    categories: ["Reverb"],
    author: "Spin Semi",
    author_url: "http://spinsemi.com/",
    controls: ["Pre-delay", "Reverb time", "Damping"],
    download: {
      spn: { file: "spinsemi/3K_V1_0_Hall.spn", },
    },
    application: "Mixer",
    source_url: "http://spinsemi.com/mixer_application.html",
  },
  {
    name: "Room Reverb",
    categories: ["Reverb"],
    author: "Spin Semi",
    author_url: "http://spinsemi.com/",
    controls: ["Pre-delay", "Reverb time", "Damping"],
    download: {
      spn: { file: "spinsemi/3K_V1_1_Room.spn" },
    },
    application: "Mixer", source_url: "http://spinsemi.com/mixer_application.html",
  },
  {
    name: "Plate Reverb",
    categories: ["Reverb"],
    author: "Spin Semi",
    author_url: "http://spinsemi.com/",
    controls: ["Pre-delay", "Reverb time", "Damping"],
    download: {
      spn: { file: "spinsemi/3K_V1_2_PLATE.spn" },
    },
    application: "Mixer",
    source_url: "http://spinsemi.com/mixer_application.html",
  },
  {
    name: "Gated Reverb",
    categories: ["Reverb"],
    author: "Spin Semi",
    author_url: "http://spinsemi.com/",
    controls: ["Pre-delay", "Gate time", "Damping"],
    download: {
      spn: { file: "spinsemi/3K_V1_3_GATED.spn" },
    },
    application: "Mixer",
    source_url: "http://spinsemi.com/mixer_application.html",
  },
  {
    name: "Echo Reverb",
    categories: ["Reverb", "Delay"],
    author: "Spin Semi",
    author_url: "http://spinsemi.com/",
    controls: ["Delay", "Repeat", "Reverb"],
    download: {
      spn: { file: "spinsemi/3K_V1_4_ECHO-REV.spn" },
    },
    application: "Mixer",
    source_url: "http://spinsemi.com/mixer_application.html",
  },
  {
    name: "Stereo Echo Reverb",
    categories: ["Reverb", "Delay"],
    author: "Spin Semi",
    author_url: "http://spinsemi.com/",
    download: {
      spn: { file: "spinsemi/3K_V1_5_STECHO-REV.spn" },
    },
    application: "Mixer",
    source_url: "http://spinsemi.com/mixer_application.html",
  },
  {
    name: "Chorus Reverb",
    categories: ["Reverb","Chorus"],
    author: "Spin Semi",
    author_url: "http://spinsemi.com/",
    controls: ["Chorus width", "Sweep rate", "Reverb"],
    download: {
      spn: { file: "spinsemi/3K_V1_6_CHOR-REV.spn" },
    },
    application: "Mixer",
    source_url: "http://spinsemi.com/mixer_application.html",
  },
  {
    name: "Flanger",
    categories: ["Flanger"],
    author: "Spin Semi",
    author_url: "http://spinsemi.com/",
    controls: ["Delay", "Sweep rate", "Sweep width"],
    download: {
      spn: { file: "spinsemi/3K_V1_7_FLANGE.spn", },
    },
    application: "Mixer",
    source_url: "http://spinsemi.com/mixer_application.html",
  },

  {
    name: "ROM Pitch Shift",
    description: "Pitch shifting program from the FV-1 internal ROM",
    categories: ["Pitch"],
    author: "Spin Semi",
    author_url: "http://spinsemi.com/",
    download: {
      spn: { file: "spinsemi/rom_pitch.spn", },
    },
    source_url: "http://spinsemi.com/programs.php"
  },
  {
    name: "ROM Pitch Echo",
    description: "Pitch-echo program from the FV-1 internal ROM",
    categories: ["Pitch","Delay"],
    author: "Spin Semi",
    author_url: "http://spinsemi.com/",
    download: {
      spn: { file: "spinsemi/rom_pt_echo.spn", },
    },
    source_url: "http://spinsemi.com/programs.php"
  },
  {
    name: "Pitch + Reverb for karaoke apps",
    categories: ["Pitch","Reverb"],
    author: "Spin Semi",
    author_url: "http://spinsemi.com/",
    download: {
      spn: { file: "spinsemi/key_rev.spn", },
    },
    application: "Karaoke",
    source_url: "http://spinsemi.com/programs.php"
  },
  {
    name: "ROM Flanger + Reverb",
    description: "Combination flange/reverb program from the FV-1 internal ROM",
    categories: ["Flanger","Reverb"],
    author: "Spin Semi",
    author_url: "http://spinsemi.com/",
    download: {
      spn: { file: "spinsemi/rom_fla_rev.spn", },
    },
    source_url: "http://spinsemi.com/programs.php"
  },
  {
    name: "ROM Reverb + Chorus",
    description: "Reverb/chorus program from the FV-1 internal ROM",
    categories: ["Chorus","Reverb"],
    author: "Spin Semi",
    author_url: "http://spinsemi.com/",
    controls: ["Reverb mix", "Rate", "Mix + Width"],
    download: {
      spn: { file: "spinsemi/rom_chor_rev.spn", },
    },
    source_url: "http://spinsemi.com/programs.php"
  },
  {
    name: "ROM Tremolo + Reverb",
    description: "Combination tremelo/reverb program from the FV-1 internal ROM",
    categories: ["Tremolo","Reverb"],
    author: "Spin Semi",
    author_url: "http://spinsemi.com/",
    download: {
      spn: { file: "spinsemi/rom_trem_rev.spn", },
    },
    source_url: "http://spinsemi.com/programs.php"
  },
  {
    name: "ROM Reverb 1",
    description: "Reverb 1 program from the FV-1 internal ROM",
    categories: ["Reverb"],
    author: "Spin Semi",
    author_url: "http://spinsemi.com/",
    download: {
      spn: {
        file: "spinsemi/rom_rev1.spn",
      }
    },
    source_url: "http://spinsemi.com/programs.php"
  },
  {
    name: "ROM Reverb 2",
    description: "Reverb 2 program from the FV-1 internal ROM",
    categories: ["Reverb"],
    author: "Spin Semi",
    author_url: "http://spinsemi.com/",
    download: {
      spn: {
        file: "spinsemi/rom_rev2.spn",
      }
    },
    source_url: "http://spinsemi.com/programs.php"
  },
  {
    name: "Reverb/RT/D/F",
    description: "Reverb program that allows three controls, reverb time, diffusion and high/low frequency damping",
    categories: ["Reverb"],
    author: "Spin Semi",
    author_url: "http://spinsemi.com/",
    download: {
      spn: {
        file: "spinsemi/rev_rt_d_f.spn",
      }
    },
    source_url: "http://spinsemi.com/programs.php"
  },

  {
    name: "Plate Reverb: Very Tight",
    categories: ["Reverb"],
    controls: ["Reverb time", "Low freq loss", "High freq loss"],
    description: "Very tight, characterized by extreme density, slight tinnyness, explosive initial sound",
    author: "Harmon Grold",
    download: {
      spn: {
        file: "rev_pl_3.spn",
      }
    },
    source_url: "http://spinsemi.com/programs.php"
  },
  {
    name: "Plate Reverb: Tight",
    description: "Tight, characterized by very high density, slight tinnyness, explosive initial sound",
    categories: ["Reverb"],
    controls: ["Reverb time", "Low freq loss", "High freq loss"],
    author: "Harmon Grold",
    download: {
      spn: {
        file: "rev_pl_2.spn",
      }
    },
    source_url: "http://spinsemi.com/programs.php"
  },
  {
    name: "Plate Reverb",
    description: "Lush (large), characterized by very high density, explosive initial sound, large",
    categories: ["Reverb"],
    controls: ["Reverb time", "Low freq loss", "High freq loss"],
    author: "Harmon Grold",
    download: {
      spn: {
        file: "rev_pl_1.spn",
      }
    },
    source_url: "http://spinsemi.com/programs.php"
  },
  {
    name: "Distortion",
    categories: ["Distortion","Code snippet"],
    author: "Spin Semi",
    author_url: "http://spinsemi.com/",
    controls: ["-","-","-"],
    download: {
      spn: {
        file: "spinsemi/dist.spn",
      }
    },
    source_url: "http://spinsemi.com/programs.php",
    commentary: [
      {
        written_by: "Spin Semi",
        comments: { text: `;begin distorting signal at -18dB (input referred).
;At the output, the signal will begin to distort at half
;of full scale, and further increase of input signal will
;cause increasingly 'flattened' signal peaks.

;This is an ideal module to be driven by a compressor,
;where sustained notes can be on the edge of distortion,
;and actual signal clipping can be prohibited.
;mono in, mono out, no controls, 24 ticks`}
      },
    ],
  },



  {
    name: "Dual LFO Chorus",
    categories: ["Chorus"],
    download: {
      spn: {
        file: "dervish/dual-lfo-chorus.spn"
      }
    },
    controls: ["Rate 1", "Rate 2", "Depth"],
    author: "Graham Biswell",
    source_url: "https://www.muffwiggler.com/forum/viewtopic.php?t=160436",
    description: "Chorus with Rate and Depth controls and sounds just like a normal chorus but adds in the 2nd rate control to spook things up a bit. Rate 2 completely CCW turns it off.",
  },
  {
    name: "dattorro-shimmer_oct_var-lvl.spn",
    description: "Dattorro Mix Reverb",
    categories: ["Reverb","Shimmer","Octave","Dattorro"],
    controls: ["Shimmer level", "Time", "Damping"],
    download: {
      spn: {
        file: "dervish/dattorro-mixed/dattorro-shimmer_oct_var-lvl.spn",
      }
    },
    source_url: "https://www.muffwiggler.com/forum/viewtopic.php?t=160436",
  },
  {
    name: "dattorro-var_filter-var_damping.spn",
    description: "Dattorro Mix Reverb",
    categories: ["Reverb","Dattorro"],
    controls: ["Filter", "Time", "Damping"],
    download: {
      spn: {
        file: "dervish/dattorro-mixed/dattorro-var_filter-var_damping.spn",
      }
    },
    source_url: "https://www.muffwiggler.com/forum/viewtopic.php?t=160436",
  },
  {
    name: "dattorro-var_filter-var_predelay.spn",
    description: "Dattorro Mix Reverb",
    categories: ["Reverb","Dattorro"],
    controls: ["Pre-delay", "Time", "Filter"],
    download: {
      spn: {
        file: "dervish/dattorro-mixed/dattorro-var_filter-var_predelay.spn",
      }
    },
    source_url: "https://www.muffwiggler.com/forum/viewtopic.php?t=160436",
  },
  {
    name: "dattorro-var_predelay-var_damping-1k.spn",
    description: "Dattorro Mix Reverb",
    categories: ["Reverb","Dattorro"],
    controls: ["Pre-delay", "Time", "Damping"],
    download: {
      spn: {
        file: "dervish/dattorro-mixed/dattorro-var_predelay-var_damping-1k.spn",
      }
    },
    source_url: "https://www.muffwiggler.com/forum/viewtopic.php?t=160436",
  },
  {
    name: "dattorro-var_predelay-var_damping-2k.spn",
    description: "Dattorro Mix Reverb",
    categories: ["Reverb","Dattorro"],
    controls: ["Pre-delay", "Time", "Damping"],
    download: {
      spn: {
        file: "dervish/dattorro-mixed/dattorro-var_predelay-var_damping-2k.spn",
      }
    },
    source_url: "https://www.muffwiggler.com/forum/viewtopic.php?t=160436",
  },
  {
    name: "dattorro-var_predelay-var_damping-4k.spn",
    description: "Dattorro Mix Reverb",
    categories: ["Reverb","Dattorro"],
    controls: ["Pre-delay", "Time", "Damping"],
    download: {
      spn: {
        file: "dervish/dattorro-mixed/dattorro-var_predelay-var_damping-4k.spn",
      }
    },
    source_url: "https://www.muffwiggler.com/forum/viewtopic.php?t=160436",
  },
  {
    name: "dattorro-var_predelay-var_damping-8k.spn",
    description: "Dattorro Mix Reverb",
    categories: ["Reverb","Dattorro"],
    controls: ["Pre-delay", "Time", "Damping"],
    download: {
      spn: {
        file: "dervish/dattorro-mixed/dattorro-var_predelay-var_damping-8k.spn",
      }
    },
    source_url: "https://www.muffwiggler.com/forum/viewtopic.php?t=160436",
  },
  {
    name: "dattorro-var_predelay-var_damping-500.spn",
    description: "Dattorro Mix Reverb",
    categories: ["Reverb","Dattorro"],
    controls: ["Pre-delay", "Time", "Damping"],
    download: {
      spn: {
        file: "dervish/dattorro-mixed/dattorro-var_predelay-var_damping-500.spn",
      }
    },
    source_url: "https://www.muffwiggler.com/forum/viewtopic.php?t=160436",
  },
  {
    name: "dattorro_1oct_pitch-ip+fb-2k.spn",
    description: "Dattorro reverb with fixed 1oct frequency pitch shift",
    categories: ["Reverb","Dattorro","Octave","Pitch"],
    controls: ["Shift level", "Time", "Damping"],
    download: {
      spn: {
        file: "dervish/dattorro-mixed/dattorro_1oct_pitch-ip+fb-2k.spn",
      }
    },
    source_url: "https://www.muffwiggler.com/forum/viewtopic.php?t=160436",
  },
  {
    name: "dattorro_1oct_pitch-ip-4k.spn",
    description: "Dattorro reverb with fixed 1oct frequency pitch shift",
    categories: ["Reverb","Dattorro","Octave","Pitch"],
    download: {
      spn: {
        file: "dervish/dattorro-mixed/dattorro_1oct_pitch-ip-4k.spn",
      }
    },
    source_url: "https://www.muffwiggler.com/forum/viewtopic.php?t=160436",
  },
  {
    name: "dattorro_var_pitch-ip+fb-4k.spn",
    description: "Dattorro reverb with variable frequency pitch shift applied to input signal and feedback",
    categories: ["Reverb","Dattorro","Pitch"],
    controls: ["Frequency shift", "Time", "Damping"],
    download: {
      spn: {
        file: "dervish/dattorro-mixed/dattorro_var_pitch-ip+fb-4k.spn",
      }
    },
    source_url: "https://www.muffwiggler.com/forum/viewtopic.php?t=160436",
  },
  {
    name: "dattorro_var_pitch-ip-4k.spn",
    description: "Dattorro reverb with variable frequency pitch shift applied to input signal",
    categories: ["Reverb","Dattorro","Pitch"],
    controls: ["Frequency shift", "Time", "Damping"],
    download: {
      spn: {
        file: "dervish/dattorro-mixed/dattorro_var_pitch-ip-4k.spn",
      }
    },
    source_url: "https://www.muffwiggler.com/forum/viewtopic.php?t=160436",
  },
  {
    name: "dattorro-shimmer_val-lvl.spn",
    description: "Dattorro Mix Reverb",
    categories: ["Reverb","Shimmer"],
    controls: ["Shimmer", "Reverb time", "Damping"],
    download: {
      spn: {
        file: "dervish/dattorro-shimmer/dattorro-shimmer_val-lvl.spn",
      }
    },
    source_url: "https://www.muffwiggler.com/forum/viewtopic.php?t=160436",
  },
  {
    name: "dattorro-var_predelay.spn",
    description: "Dattorro Reverb - variable predelay",
    categories: ["Reverb"],
    download: {
      spn: {
        file: "dervish/dattorro-var_predelay.spn",
      }
    },
    source_url: "https://www.muffwiggler.com/forum/viewtopic.php?t=160436",
  },
  {
    name: "Single Head Tape Echo + Spring Reverb",
    categories: ["Reverb","Delay"],
    controls: ["Time", "Feedback", "Reverb"],
    download: {
      spn: {
        file: "dervish/drv102/dv102-1head-reverb.spn"
      }
    },
    source_url: "https://www.muffwiggler.com/forum/viewtopic.php?t=160436",
  },
  {
    name: "Dual Head Tape Echo + Spring Reverb",
    categories: ["Reverb","Delay"],
    controls: ["Time", "Feedback", "Reverb"],
    download: {
      spn: {
        file: "dervish/drv102/dv102-2head-reverb.spn"
      }
    },
    source_url: "https://www.muffwiggler.com/forum/viewtopic.php?t=160436",
  },
  {
    name: "Single Head Tape Echo + Spring Reverb w/ Ping Pong",
    description: "Not very tape echo like, really",
    controls: ["Time", "Feedback", "Level"],
    categories: ["Reverb","Delay"],
    download: {
      spn: {
        file: "dervish/drv102/dv102-pp-1head-reverb.spn"
      }
    },
    source_url: "https://www.muffwiggler.com/forum/viewtopic.php?t=160436",
  },
  {
    name: "Dual Head Tape Echo + Spring Reverb w/ Ping Pong",
    description: "Not very tape echo like, really",
    categories: ["Reverb","Delay"],
    controls: ["Time", "Feedback", "Level"],
    download: {
      spn: {
        file: "dervish/drv102/dv102-pp-2head-reverb.spn"
      }
    },
    source_url: "https://www.muffwiggler.com/forum/viewtopic.php?t=160436",
  },
  {
    name: "Single Head Tape Echo",
    categories: ["Delay"],
    controls: ["Time", "Feedback", "Damping"],
    download: {
      spn: {
        file: "dervish/drv103/dv103-1head.spn"
      }
    },
    source_url: "https://www.muffwiggler.com/forum/viewtopic.php?t=160436",
  },
  {
    name: "Single Head Tape Echo + Reverb",
    categories: ["Delay", "Reverb"],
    controls: ["Time", "Feedback", "Damping"],
    download: {
      spn: {
        file: "dervish/drv103/dv103-1head-4xreverb.spn",
      }
    },
    source_url: "https://www.muffwiggler.com/forum/viewtopic.php?t=160436",
  },
  {
    name: "Ping Pong",
    categories: ["Delay"],
    controls: ["Time", "Feedback", "Damping"],
    download: {
      spn: {
        file: "dervish/drv103/dv103-1head-pp.spn",
      }
    },
    source_url: "https://www.muffwiggler.com/forum/viewtopic.php?t=160436",
  },
  {
    name: "Ping Pong 2:1",
    categories: ["Delay"],
    controls: ["Time", "Feedback", "Damping"],
    download: {
      spn: {
        file: "dervish/drv103/dv103-1head-pp-2_1.spn",
      }
    },
    source_url: "https://www.muffwiggler.com/forum/viewtopic.php?t=160436",
  },
  {
    name: "Dual Head Tape Echo + Reverb, w/ Ping Pong",
    description: "reverb code is a 2 tap version of the Spin OEM1 Vocal Plate",
    categories: ["Delay", "Reverb"],
    controls: ["Time", "Feedback", "Damping"],
    download: {
      spn: {
        file: "dervish/drv103/dv103-1head-pp-2_1-4xreverb.spn",
      }
    },
    source_url: "https://www.muffwiggler.com/forum/viewtopic.php?t=160436",
  },
  {
    name: "Dual Head Tape Echo + Reverb",
    description: "reverb code is a 2 tap version of the Spin OEM1 Vocal Plate",
    categories: ["Delay", "Reverb"],
    controls: ["Delay time", "Feedback", "Damping"],
    download: {
      spn: {
        file: "dervish/drv103/dv103-2head-2_1-reverb.spn",
      }
    },
    source_url: "https://www.muffwiggler.com/forum/viewtopic.php?t=160436",
  },
  {
    name: "Stereo Pitch Transposer w/ Feedback and Delay",
    categories: ["Delay", "Pitch"],
    controls: ["Pitch", "Feedback", "Delay"],
    download: {
      spn: {
        file: "dervish/pitch+fb+delay.spn",
      }
    },
    source_url: "https://www.muffwiggler.com/forum/viewtopic.php?t=160436",
  },
  {
    name: "Looper simple",
    special_pcb: true,
    description: "Looper with dual tap ping pong delay with adjustable feedback and fixed damping (damping has hpf & lpf)",
    author: "Graham Biswell",
    categories: ["Looper","Delay"],
    download: {
      spn: {
        file: "dervish/looper/looper-simple-fb.spn",
      }
    },
    source_url: "https://www.muffwiggler.com/forum/viewtopic.php?t=160436",
  },
  {
    name: "Looper ping pong",
    special_pcb: true,
    description: "Looper with dual tap ping pong delay with adjustable feedback and fixed damping (damping has hpf & lpf)",
    author: "Graham Biswell",
    categories: ["Looper","Delay"],
    download: {
      spn: {
        file: "dervish/looper/looper-pingpong-fb.spn",
      }
    },
    source_url: "https://www.muffwiggler.com/forum/viewtopic.php?t=160436",
  },

  {
    name: "Ping Pong: Basic Wonky",
    description: "Basic pingpong with adjustable feedback & damping ; damping has hpf & lpf ; some added wonkiness",
    author: "Graham Biswell",
    categories: ["Delay"],
    controls: ["Time", "Feedback", "Damping"],
    download: {
      spn: {
        file: "dervish/pingpong/pp-basic-wonky.spn",
      }
    },
    source_url: "https://www.muffwiggler.com/forum/viewtopic.php?t=160436",
  },
  {
    name: "Ping Pong: Basic",
    description: "Basic pingpong with adjustable feedback & damping ; damping has hpf & lpf",
    author: "Graham Biswell",
    categories: ["Delay"],
    controls: ["Time", "Feedback", "Damping"],
    download: {
      spn: {
        file: "dervish/pingpong/pp-basic.spn",
      }
    },
    source_url: "https://www.muffwiggler.com/forum/viewtopic.php?t=160436",
  },
  {
    name: "Ping Pong: Stereo with Dual Taps",
    description: "Simple stereo ping pong delay with adjustable feedback & damping",
    author: "Graham Biswell",
    categories: ["Delay"],
    download: {
      spn: {
        file: "dervish/pingpong/pp-dubble-stereo.spn",
      }
    },
    source_url: "https://www.muffwiggler.com/forum/viewtopic.php?t=160436",
  },
  {
    name: "Ping Pong with Dual Taps",
    author: "Graham Biswell",
    categories: ["Delay"],
    controls: ["Time 1", "Time 2", "Feedback"],
    download: {
      spn: {
        file: "dervish/pingpong/pp-dubble.spn",
      }
    },
    source_url: "https://www.muffwiggler.com/forum/viewtopic.php?t=160436",
  },
  {
    name: "Ping Pong: Simple",
    description: "Simple ping pong delay with adjustable feedback & lpf damping",
    author: "Graham Biswell",
    categories: ["Delay"],
    download: {
      spn: {
        file: "dervish/pingpong/pp-simple.spn",
      }
    },
    source_url: "https://www.muffwiggler.com/forum/viewtopic.php?t=160436",
  },
  {
    name: "Ping Pong: Simple Stereo",
    description: "Simple stereo ing pong delay with adjustable feedback & lpf damping",
    author: "Graham Biswell",
    categories: ["Delay"],
    download: {
      spn: {
        file: "dervish/pingpong/pp-simple-stereo.spn",
      }
    },
    source_url: "https://www.muffwiggler.com/forum/viewtopic.php?t=160436",
  },
  {
    name: "Ping Pong: Triple",
    description: "Ping pong delay with 3 taps - left, right, centre ; centre is mixed with both left & right taps",
    author: "Graham Biswell",
    categories: ["Delay"],
    controls: ["Time 1", "Time 2", "Time 3"],
    download: {
      spn: {
        file: "dervish/pingpong/pp-tripple.spn",
      }
    },
    source_url: "https://www.muffwiggler.com/forum/viewtopic.php?t=160436",
  },

  {
    name: "Triple Tap Cascaded Delay",
    author: "Graham Biswell",
    categories: ["Delay"],
    controls: ["Time 1", "Time 2", "Time 3"],
    download: {
      spn: {
        file: "dervish/triple/tripple_echo_cascaded.spn",
      }
    },
    source_url: "https://www.muffwiggler.com/forum/viewtopic.php?t=160436",
  },
  {
    name: "Triple Tap Cascaded Delay - Stereo",
    author: "Graham Biswell",
    categories: ["Delay"],
    controls: ["Time 1", "Time 2", "Time 3"],
    download: {
      spn: {
        file: "dervish/triple/tripple_echo_cascaded_stereo.spn",
      }
    },
    source_url: "https://www.muffwiggler.com/forum/viewtopic.php?t=160436",
  },
  {
    name: "Triple Tap Cascaded Delay - Stereo w/ Chorus",
    author: "Graham Biswell",
    categories: ["Delay", "Chorus"],
    controls: ["Time 1", "Time 2", "Time 3"],
    download: {
      spn: {
        file: "dervish/triple/tripple_echo_cascaded_stereo+chorus.spn",
      }
    },
    source_url: "https://www.muffwiggler.com/forum/viewtopic.php?t=160436",
  },
  {
    name: "Triple Tap Delay - Parallel",
    description: "taps are treated in parallel ; feedback & damping are fixed",
    author: "Graham Biswell",
    categories: ["Delay"],
    controls: ["Time 1", "Time 2", "Time 3"],
    download: {
      spn: {
        file: "dervish/triple/tripple_echo_parallel.spn",
      }
    },
    source_url: "https://www.muffwiggler.com/forum/viewtopic.php?t=160436",
  },
  {
    name: "Triple Tap Delay - Parallel, Varying Feedback",
    description: "taps are treated in parallel ; feedback & damping are fixed, but f/b varies slighly depending on delay time (longer time, less f/b) ; damping for each tap is different",
    author: "Graham Biswell",
    categories: ["Delay"],
    controls: ["Time 1", "Time 2", "Time 3"],
    download: {
      spn: {
        file: "dervish/triple/tripple_echo-var_fb.spn",
      }
    },
    source_url: "https://www.muffwiggler.com/forum/viewtopic.php?t=160436",
  },
  {
    name: "Triple Tap Delay - Parallel, Varying Feedback, w/ Chorus",
    description: "taps are treated in parallel ; feedback & damping are fixed, but f/b varies slighly depending on delay time (longer time, less f/b) ; damping for each tap is different; With chorus",
    author: "Graham Biswell",
    categories: ["Delay", "Chorus"],
    controls: ["Time 1", "Time 2", "Time 3"],
    download: {
      spn: {
        file: "dervish/triple/tripple_echo-var_fb+chorus.spn",
      }
    },
    source_url: "https://www.muffwiggler.com/forum/viewtopic.php?t=160436",
  },

  {
    name: "Plate Reverb - Dattorro",
    categories: ["Reverb", "Dattorro"],
    controls: ["Reverb level", "Reverb time", "Damping"],
    download: {
      spn: {
        file: "dattorro.spn",
      }
    },
  },
  {
    name: "Freeverb",
    description: "Freeverb is a stereo reverb unit based on Jezar's public domain C++ sources, composed of eight parallel comb filters on both channels, followed by four allpass units in series. The filters on the right channel are slightly detuned compared to the left channel in order to create a stereo effect.",
    author: "basilrush",
    categories: ["Reverb"],
    download: {
      spn: {
        file: "freeverb.spn",
      }
    },
    source_url: "http://www.spinsemi.com/forum/viewtopic.php?t=309",
    controls: ["Comb feedback", "-", "-"],
    commentary: [
      {
        written_by: "Mark S.",
        comments: { text: "This effect makes me feel like I'm in a tin spaceship on my way to the moon. In an awesome way." },
      },
    ],
  },
  {
    name: "Greenwood Delay",
    author: "slacker",
    categories: ["Delay"],
    controls: ["Speed", "Time", "Randomness"],
    download: {
      spn: {
        file: "greenwood-delay.spn",
      }
    },
    source_url: "http://www.spinsemi.com/forum/viewtopic.php?t=290",
  },
  {
    name: "Pitch Transposer - Stereo",
    author: "ExertionMusic",
    categories: ["Pitch"],
    download: {
      spn: {
        file: "pitch-transpose-stereo.spn",
      }
    },
    source_url: "http://www.spinsemi.com/forum/viewtopic.php?t=235"
  },
  {
    name: "Reverse Reverb",
    author: "Malekko",
    categories: ["Reverb"],
    controls: ["Pre-delay", "Decay time", "Damping"],
    download: {
      spn: {
        file: "RevRev.spn"
      }
    },
  },
  {
    name: "Hall Reverb w/ Shimmer",
    author: "Sweetalk",
    categories: ["Reverb", "Shimmer"],
    controls: ["Damping", "Feedback", "Decay"],
    download: {
      spn: {
        file: "shimmer-1.spn"
      }
    },
  },
  {
    name: "New Shimmer Reverb",
    categories: ["Reverb", "Shimmer"],
    controls: ["Shimmer", "Reverb level", "Reverb time"],
    download: {
      spn: {
        file: "shimmer-2.spn"
      }
    },
    source_url: "http://www.spinsemi.com/forum/viewtopic.php?p=3073",
  },
  {
    name: "Octave Up and Down",
    categories: ["Octave","Pitch"],
    controls: ["Mix", "Octave up", "Octave down"],
    download: {
      spn: {
        file: "up-down-octaver.spn"
      }
    },
    source_url: "http://www.spinsemi.com/forum/viewtopic.php?t=116",
  },
  {
    name: "Stereo Tremolo",
    author: "Digital Larry",
    categories: ["Tremolo"],
    controls: ["Left speed", "Right speed", "-"],
    download: {
      spn: {
        file: "stereo-tremolo.spn",
      }
    },
    source_url: "http://www.spinsemi.com/forum/viewtopic.php?f=4&t=382",
  },
  {
    name: "Stereo Ring Modulators w/ Chorus",
    author: "Digital Larry",
    categories: ["Chorus", "Ring Modulator"],
    controls: ["Blend", "Carrier offset", "Chorus"],
    download: {
      spn: {
        file: "stereo-ring-modulators-with-chorus.spn",
      }
    },
    source_url: "http://www.spinsemi.com/forum/viewtopic.php?f=4&t=384",
  },
  {
    name: "Triple Delay w/ Feedback",
    author: "Digital Larry",
    categories: ["Delay"],
    controls: ["Time 1", "Times 2 & 3", "Feedback"],
    download: {
      spn: {
        file: "triple-delay-feedback.spn",
      }
    },
    source_url: "http://www.spinsemi.com/forum/viewtopic.php?f=4&t=452",
    commentary: [
      {
        written_by: "Mark S.",
        comments: { text: "Works well; I like this." },
      },
    ],
  },
  {
    name: "Stereo Dual Flange Multi Tap Delay",
    author: "Digital Larry",
    categories: ["Delay","Flanger"],
    controls: ["Feedback", "Resonance and time", "Return level"],
    download: {
      spn: {
        file: "stereo-dual-flange-multi-tap-delay.spn",
      }
    },
    source_url: "http://www.spinsemi.com/forum/viewtopic.php?f=4&t=469",
  },
  {
    name: "Modulated Echo",
    author: "patb",
    categories: ["Delay"],
    controls: ["Time", "Depth", "Level"],
    download: {
      spn: {
        file: "modulated-echo.spn",
      }
    },
    source_url: "http://www.spinsemi.com/forum/viewtopic.php?f=4&t=649",
  },
  {
    name: "Interesting - w/ Overdrive",
    description: "There is an overdrive going to the flanger and highpass/delay, but the reverb is driven directly from the input.",
    author: "Digital Larry",
    categories: ["Flanger", "Filter", "Delay", "Reverb", "Distortion"],
    download: {
      spn: {
        file: "interesting-1.spn",
      }
    },
    source_url: "http://www.spinsemi.com/forum/viewtopic.php?f=4&t=465",
    commentary: [
      {
        written_by: "Digital Larry",
        comments: { text: "POT0 is mostly flange speed\nPOT1 is reverb time combined with a swept high pass on a parallel delay line\nPOT2 is the mix level for the flange and delay. Reverb comes through in any case." }
      }
    ],
  },
  {
    name: "Interesting - v1",
    description: "Flanger and highpass/delay, but the reverb is driven directly from the input. With some envelope control on the filter.",
    author: "Digital Larry",
    categories: ["Flanger", "Filter", "Delay", "Reverb"],
    download: {
      spn: {
        file: "interesting-2.spn",
      }
    },
    source_url: "http://www.spinsemi.com/forum/viewtopic.php?f=4&t=465",
  },
  {
    name: "Faux Phase Shifter",
    description: "Sounds like a phaser but in fact it is not one, strictly speaking. It is built up from resonant high pass and low pass filters mixed together",
    author: "Digital Larry",
    categories: ["Phaser"],
    controls: ["Speed and Width", "Time", "Level and Feedback"],
    download: {
      spn: {
        file: "faux-phaser.spn",
      }
    },
    source_url: "http://www.spinsemi.com/forum/viewtopic.php?f=4&t=490",
  },
  {
    name: "Faux Phase Shifter - extra delay",
    description: "Sounds like a phaser but in fact it is not one, strictly speaking. It is built up from resonant high pass and low pass filters mixed together. Adds another delay to the resonant low pass",
    author: "Digital Larry",
    categories: ["Phaser"],
    controls: ["Speed and Width", "Time", "Level and Feedback"],
    download: {
      spn: {
        file: "faux-phaser-2.spn",
      }
    },
    source_url: "http://www.spinsemi.com/forum/viewtopic.php?f=4&t=490",
  },
  {
    name: "Dual-Rate Chorus",
    description: "Rate and Depth controls and sounds just like a normal chorus but adds in the 2nd rate control to spook things up a bit",
    author: "ice-nine",
    categories: ["Chorus"],
    controls: ["Chorus level", "Rate 1", "Rate 2"],
    download: {
      spn: {
        file: "chorus-dual-rate.spn",
      }
    },
    source_url: "http://www.spinsemi.com/forum/viewtopic.php?f=4&t=490",
  },
  {
    name: "Cabinet simulator",
    author: "jovesdies",
    categories: ["Cabinet simulator"],
    download: {
      spcd: {
        file: "holy-city-audio/cabinet-simulator.spcd",
      }
    },
    source_url: "https://www.diystompboxes.com/smfforum/index.php?topic=123725.0",
  },
  {
    name: "Chorus: Bank of demo patches",
    author: "Digital Larry",
    categories: ["Chorus"],
    download: {
      spbk: {
        file: "holy-city-audio/chorus-demo-bank-2018.spbk",
      },
      spn: {
        file: "holy-city-audio/chorus-demo-bank-2018-spinasm.zip",
      },
      hex: {
        file: "holy-city-audio/chorus-demo-bank-2018.hex",
      }
    },
    source_url: "https://www.diystompboxes.com/smfforum/index.php?topic=123725.0",
    commentary: [
      {
        written_by: "Digital Larry",
        comments: { text: `I've recreated some patches quickly showing what I think I was trying to demonstrate.
Check "patch information" for each patch to see my notes on these. Patches 1-4 represent my quick dialing up of several chorus sounds which are pleasing to me.

The Power block can be placed after a Pot control to change its curve or "taper". Using increasing powers causes the controlled effect to come in "later" in the pot's rotation. Use increasing powers with "invert" and "flip" both set in the control panel to make the effect come in "sooner". Even when you are using a single control, you can process it differently for each destination if that's what you want. This allows you to fine-tune the sonic blend all along the rotation of the control pot.

Open up the control panels and adjust the sounds to your own tastes. Thousands of subtle and not- so-subtle variations are possible.

There is a tradeoff required between LFO width and LFO speed unless you are looking for sci-fi sounds. Many of the patches use a single control which turns the speed up while turning the width down to achieve a wide range of acceptable chorus sounds with a single control. This is less flexible than using separate controls, but it's entirely up to you.
In addition, the longer the chorus delay time, the less width you need to achieve a given level of detuning.`
        }
      }
    ],
  },
  {
    name: "Delay with threshold",
    author: "Digital Larry",
    categories: ["Delay"],
    download: {
      spcd: {
        file: "holy-city-audio/delay-with-threshold.spcd",
      }
    },
    source_url: "https://www.diystompboxes.com/smfforum/index.php?topic=123725.0",
  },
  {
    name: "Delay: Bank of demo patches",
    author: "Digital Larry",
    categories: ["Delay"],
    download: {
      spbk: {
        file: "holy-city-audio/demo-delays.spbk",
      },
      spn: {
        file: "holy-city-audio/demo-delays-spinasm.zip",
      }
    },
    source_url: "https://www.diystompboxes.com/smfforum/index.php?topic=123725.0",
  },
  {
    name: "Filter tremolo",
    description: "We have both filter tremolo and volume modulation with LFO 90 degrees phase shifted.  This is similar to harmonic tremolo as found in some vintage tube amps.",
    author: "Digital Larry",
    categories: ["Tremolo"],
    download: {
      spcd: { file: "holy-city-audio/filter-tremolo-example.spcd", },
      spn: { file: "holy-city-audio/filter-tremolo-example.spn", },
    },
    source_url: "https://www.diystompboxes.com/smfforum/index.php?topic=123725.0",
    commentary: [
      {
        written_by: "Digital Larry",
        comments: { text: `One of the coolest things you can do with the fixed SVP block is to make a "tremolo" type sound using the crossfade block. The concept is tremolo but it sounds a lot like a flanger at times. Adjust the filter frequency and resonance to taste. I think you'll want to keep the resonance below 6 most of the time.

I love this one! Many variations possible.`},
      },
      {
        written_by: "Digital Larry",
        comments: { text: `Here's another variation on the filter tremolo. We have both filter tremolo and volume modulation with LFO 90 degrees phase shifted.

This is similar to harmonic tremolo as found in some vintage tube amps. Harmonic tremolos may use separate filters for the high and low sections, whereas this implementation uses the high and low outputs of a single state variable filter. You could of course add a second filter so that the corner frequencies could be controlled independently. Also I'm pretty sure that harmonic tremolo varies the high and low amplitude 180 degrees out of phase with each other. This may be a better sound than having them 90 degrees apart. Nice thing is that you can experiment with all sorts of different ways of doing it.` }
      },
    ]
  },
  {
    name: "Flangers: Bank of patches",
    author: "Digital Larry",
    categories: ["Flanger"],
    download: {
      spbk: {
        file: "holy-city-audio/flangers.spbk",
      },
      spn: {
        file: "holy-city-audio/flangers-spinasm.zip",
      }
    },
    source_url: "https://www.diystompboxes.com/smfforum/index.php?topic=123725.0",
  },
  {
    name: "Multi tap delays: Bank of patches",
    author: "Digital Larry",
    categories: ["Delay"],
    download: {
      spbk: {
        file: "holy-city-audio/multi-tap-delays.spbk",
      },
      spn: {
        file: "holy-city-audio/multi-tap-delays-spinasm.zip",
      }
    },
    source_url: "https://www.diystompboxes.com/smfforum/index.php?topic=123725.0",
  },
  {
    name: "New Flanger",
    author: "Digital Larry",
    description: "Flanger using rectified-sine modulation.  LFO frequency and width are in inverse relationship from the pot to give good results over a wide frequency range with one knob.",
    categories: ["Flanger"],
    controls: ["LFO rate/width", "Resonance", "Delay offset"],
    download: {
      spn: {
        file: "holy-city-audio/new-flanger.spn",
      }
    },
    source_url: "https://www.diystompboxes.com/smfforum/index.php?topic=123725.0",
  },
  {
    name: "Oil can delay",
    author: "Digital Larry",
    categories: ["Delay"],
    download: {
      spn: {
        file: "holy-city-audio/oil-can-delay.spn",
      }
    },
    controls: ["Time & rate", "Chorus width", "Feedback"],
    source_url: "https://www.diystompboxes.com/smfforum/index.php?topic=123725.0",
    commentary: [
      {
        written_by: "Digital Larry",
        comments: { text: `Here's the idea of an oil-can delay. It uses a drum which is insulating but has a conductive outer surface. It runs through a reservoir of oil and a brush contact connected to a voltage amplifier from the input writes electrons onto the surface which are picked up by another brush on the other side of the drum. So the delay time is related to the angular displacement of the brushes and the RPM. For example if the brushes are 180 degrees apart, and it's going 60 RPM (1 rev/second) then that is a 500 msec delay. t (seconds) = (angle/360) * 60/RPM = angle / (6 * RPM). Faster the RPM, the shorter the delay.

Next there is a wobble (LFO chorus) due to the drum being off center. The rate of this corresponds to the RPM or revs per second. Faster the RPM, the faster the chorus LFO.

So we need an inverse relationship between chorus rate and delay time from one pot which controls the delay time setting. This you can see from the inverted scale going to the chorus block lfo rate input from pot1 which also goes through a smoother. The net effect of changing the scale/offset blocks (or the delay max time, or the chorus LFO max rate) is to change the angular displacement of the read and write brushes. If the specifics are important, figure it out but you can get different sounds by changing these ratios. Interestingly, the "size" of the drum makes no difference.

I used the multi-tap delay block because supposedly some oil can delays had two heads, but I'm not sure.

Pot0 = delay time/lfo rate (limited range setting, try making it longer if you like)
Pot1 = chorus width
Pot2 = feedback` }
      },
      {
        written_by: "Mark S.",
        comments: { text: "This sounds really nice, and takes on a very 'rubbery' sound to it when you crank up the chorus width" },
      },
    ],
  },
  {
    name: "Percussion Ambience",
    author: "Digital Larry",
    description: "Try this on some percussive material.",
    categories: ["Code snippet"],
    download: {
      spn: {
        file: "holy-city-audio/percussion-ambience.spn",
      }
    },
    source_url: "https://www.diystompboxes.com/smfforum/index.php?topic=123725.0",
  },
  {
    name: "Room reverb: 3-4-5",
    author: "Digital Larry",
    description: "This one uses 3 delay lines with relative lengths in a ratio of 3 - 4 - 5",
    categories: ["Reverb"],
    download: {
      spn: {
        file: "holy-city-audio/room-reverb-3-4-5.spn",
      }
    },
    source_url: "https://www.diystompboxes.com/smfforum/index.php?topic=123725.0",
    commentary: [
      {
        written_by: "Digital Larry",
        comments: { text: "This one uses 3 delay lines with relative lengths in a ratio of 3 - 4 - 5 which I just learned is considered a good ratio for such things. No all pass filters or anything fancy. Adjustable low pass filters in each delay line feedback. Doesn't sound bad for something so simple!" }
      }
    ],
  },
  {
    name: "Spacedash",
    author: "madbeanpedals",
    author_url: "https://madbeanpedals.com/",
    categories: ["Uncategorized"],
    controls: ["Intensity", "Rate", "Mix"],
    download: {
      spcd: {
        file: "madbeanpedals/spacedash.spcd",
      },
      spn: {
        file: "madbeanpedals/spacedash.spn",
      },
    },
    source_url: "https://www.diystompboxes.com/smfforum/index.php?topic=123725.0",
  },
  {
    name: "Shimmer",
    author: "Digital Larry",
    controls: ["Level", "Filter", "Time"],
    categories: ["Reverb", "Shimmer"],
    download: {
      spcd: { file: "holy-city-audio/shimmer.spcd", },
      spn: { file: "holy-city-audio/shimmer.spn", },
    },
    source_url: "https://www.diystompboxes.com/smfforum/index.php?topic=123725.0",
  },
  {
    name: "Through zero flangers",
    author: "Digital Larry",
    categories: ["Flanger"],
    download: {
      spbk: {
        file: "holy-city-audio/through-zero-flangers-demo.spbk",
      },
      spn: {
        file: "holy-city-audio/through-zero-flangers-demo-spinasm.zip",
      }
    },
    source_url: "https://www.diystompboxes.com/smfforum/index.php?topic=123725.0",
    commentary: [
      {
        written_by: "Digital Larry",
        comments: { text: `I finally figured out that much of the magic requires one of the delay lines to be inverted so that they fully cancel when they line up.

I'm sure there's more that could be done here. Play with the LFO width (shorter seems better), the servo gain, tap ratio, and LFO speed (slower seems better for bringing out the drama of the TZF).` },
      }
    ],
  },
  {
    name: "Square wave Tremolo, Aliaser, Reverb",
    author: "Digital Larry",
    categories: ["Reverb", "Tremolo","Aliaser"],
    description: "Square Wave Tremolo with envelope controlled aliaser and reverb. Because why not?",
    controls: ["Speed", "Depth", "Reverb level and Envelope sensitivity"],
    download: {
      spn: {
        file: "holy-city-audio/tremolo-aliaser-reverb.spn",
      }
    },
    source_url: "https://www.diystompboxes.com/smfforum/index.php?topic=123725.0",
    commentary: [
      {
        written_by: "Mark S.",
        comments: { text: "This may very well be known and/or intentional, but just to note: I get a lot of distortion with this one." },
      },
    ],
  },
  {
    name: "Starfield",
    author: "madbeanpedals",
    author_url: "https://madbeanpedals.com/",
    description: "This is a delay that allows you to mix in a phaser with the delays",
    categories: ["Delay", "Phaser"],
    controls: ["Delay time", "Feedback", "Sweep"],
    download: {
      spcd: { file: "madbeanpedals/starfield.spcd", },
      spn: { file: "madbeanpedals/starfield.spn", },
    },
    commentary: [
      {
        written_by: "madbeanpedals",
        comments: { text: `P0 sets delay time from a few ms to about 975ms.

P1 sets the feedback amount from 0 to max. The Feedback path is also has both HP and LP filters
(70Hz and 2290Hz resp.) for a bit of bucket-brigade flavor.

P2 sets the amount of phaser sweep in the feedback path from 0 - slow - fast.

Possible mods:
Change the LPF filter in the Feedback path for brighter or darker delay tones.
Change the Frequency and Resonant peak settings in the SVF 2P block for different phaser tones. `}
      },
      {
        written_by: "Mark S.",
        comments: { text: "I wasn't able to get this to work. Neither with the spn nor the spcd. Haven't done any investigation yet, though" },
      },
      {
        written_by: "Mark S.",
        comments: { text: "I fixed this by replacing the SVF 2P block with an updated one. Perhaps they used a much older version of SpinCAD?" },
      },
    ],
  },
  {
    name: "Choir Saw",
    author: "madbeanpedals",
    author_url: "https://madbeanpedals.com/",
    description: "A delay with pitch shift in the feedback path. Kind of a discount EQD Rainbow Machine",
    categories: ["Delay", "Pitch"],
    controls: ["Delay time", "Feedback and Pitch Volume", "Speed"],
    download: {
      spcd: { file: "madbeanpedals/choir-saw.spcd", },
      spn: { file: "madbeanpedals/choir-saw.spn", },
    },
    commentary: [
      {
        written_by: "madbeanpedals",
        comments: { text: `The Choirsaw (mono edition) is a bit on the bizarre side. It's a delay at its core but combines pitch shifting and tremolo. The result is something pretty unique and also musically interesting.

P0 sets the delay time from long to short (about 800ms to a few ms). It also cross-fades into the
pitch-shift as it is turned up. So, when the delay gets shorter more pitch shift is available in the
feedback path.

P1 sets the feedback amount and pitch shift volume. The key to making this sound good was
being pretty aggressive with the filter on the pitch shift. With too little filtering is just sounded like
an icepick as the notes continuously jumped octaves. As is, it creates more of a sonic bed as the
octaves increase.

P2 sets the sinewave tremolo speed from 0 - slow - fast. This gets really interesting when you set the delay to slow, feedback high and trem fast. Try it!` },
      },
    ],
  },
  {
    name: "Parallax",
    author: "madbeanpedals",
    author_url: "https://madbeanpedals.com/",
    description: "Emulates the Function F(x) Parallax pedal. It's a tremolo with a phase shifter and speed controls for each",
    categories: ["Tremolo", "Phaser"],
    controls: ["Phaser speed", "Feedback and Width", "Tremolo speed"],
    download: {
      spcd: { file: "madbeanpedals/parallax.spcd", },
      spn: { file: "madbeanpedals/parallax.spn", },
    },
    commentary: [
      {
        written_by: "Mark S.",
        comments: { text: "It's really easy to make some out-of-this-world sounds - great for experimental, trippy music - but with some careful tweaking you can achieve som really beautiful effects that are simpler to harness." },
      },
    ],
  },
  {
    name: "Spring Reverb + Tremolo",
    author: "Don Stavely",
    description: "Spring reverbs sound 'boingy' because of dispersion in the spring - higher frequencies travel slower than low frequencies. A 'spectral delay filter', consisting of many (100's) of unit allpasses will produce the desired 'chirp' impulse response...",
    categories: ["Tremolo", "Reverb"],
    controls: ["Reverb", "Rate", "Depth"],
    download: {
      spn: {
        file: "spring_verb.spn",
      }
    },
  },

  {
    name: "Flanger",
    description: "A basic flanger. Designed for bass",
    author: "Firesledge",
    author_url: "http://ldesoras.free.fr/",
    categories: ["Flanger", "Bass"],
    controls: ["Speed", "Depth", "Feedback"],
    download: {
      spcd: { file: "firesledge/bass-fv1-p0-flanger.spcd", },
      spn: { file: "firesledge/bass-fv1-p0-flanger.spn", },
    },
  },
  {
    name: "Phaser OD",
    description: "A basic phaser with some overdrive in the feedback path. Designed for bass",
    author: "Firesledge",
    author_url: "http://ldesoras.free.fr/",
    categories: ["Phaser", "Bass"],
    controls: ["Speed", "Depth", "Feedback"],
    download: {
      spcd: { file: "firesledge/bass-fv1-p1-phaser.spcd", },
      spn: { file: "firesledge/bass-fv1-p1-phaser.spn", },
    },
  },
  {
    name: "Delay OD",
    description: "A delay with filtered overdrive in the feedback path. Designed for bass",
    author: "Firesledge",
    author_url: "http://ldesoras.free.fr/",
    categories: ["Delay", "Bass"],
    controls: ["Time", "Feedback", "Dry/wet mix"],
    download: {
      spcd: { file: "firesledge/bass-fv1-p2-delay.spcd", },
      spn: { file: "firesledge/bass-fv1-p2-delay.spn", }
    },
  },
  {
    name: "Reverb",
    description: "Simple reverberation effect. Designed for bass",
    author: "Firesledge",
    author_url: "http://ldesoras.free.fr/",
    categories: ["Reverb", "Bass"],
    controls: ["Time", "Filter", "Mix"],
    download: {
      spn: { file: "firesledge/bass-fv1-p3-reverb.spn", },
      spcd: { file: "firesledge/bass-fv1-p3-reverb.spcd", }
    },
  },
  {
    name: "Autowah",
    description: "Automatic wah effect based on the signal volume. Designed for bass",
    author: "Firesledge",
    author_url: "http://ldesoras.free.fr/",
    categories: ["Filter", "Bass", "Wah"],
    controls: ["Amount", "Resonance", "Frequency"],
    download: {
      spn: { file: "firesledge/bass-fv1-p4-autowah.spn", },
      spcd: { file: "firesledge/bass-fv1-p4-autowah.spcd", }
    },
    commentary: [
      {
        written_by: "Firesledge",
        comments: { text: "Pot 0: Amount (bidirectional, mid=neutral); Pot 1: Resonance; Pot 2: Frequency" }
      }
    ],
  },
  {
    name: "Distortion",
    description: "Simple distortion with variable gain, tone and mix. Designed for bass",
    author: "Firesledge",
    author_url: "http://ldesoras.free.fr/",
    categories: ["Distortion", "Bass"],
    controls: ["Gain", "Tone", "Dry/wet mix"],
    download: {
      spn: { file: "firesledge/bass-fv1-p5-disto.spn", },
      spcd: { file: "firesledge/bass-fv1-p5-disto.spcd", }
    },
    commentary: [
      {
        written_by: "Mark S.",
        comments: { text: "When using with a guitar, the tone knob isn't terribly useful, but once you find a good spot for it, it really rips.  You can get some thick, meaty fuzz with this." }
      },
    ],
  },
  {
    name: "Filter tremolo+",
    description: "Harmonic tremolo with distortion. Designed for bass",
    author: "Firesledge, Digital Larry",
    author_url: "http://ldesoras.free.fr/",
    categories: ["Tremolo", "Distortion", "Bass"],
    download: {
      spn: { file: "firesledge/bass-fv1-p6-filter-tremolo-disto.spn", },
      spcd: { file: "firesledge/bass-fv1-p6-filter-tremolo-disto.spcd", },
    },
    controls: ["Speed", "Resonance", "Gain"],
    commentary: [
      {
        written_by: "Firesledge",
        comments: { text: `Modified from http://holycityaudio.com/forum/viewtopic.php?f=30&t=1660` },
      },
    ],
  },
  {
    name: "Starfield+",
    description: "Harmonic tremolo mixed with a delay. Based on Madbeanpedals Starfield.",
    author: "Firesledge",
    author_url: "http://ldesoras.free.fr/",
    categories: ["Delay", "Tremolo", "Bass"],
    controls: ["Delay", "Speed + Delay/Tremolo mix", "Dry/wet mix"],
    download: {
      spcd: { file: "firesledge/bass-fv1-p7-harm-trem-delay.spcd", },
      spn: { file: "firesledge/bass-fv1-p7-harm-trem-delay.spn", }
    },
  },

  {
    name: "8 second delay",
    description: "This delays an input by eight seconds. It inteleaves the signal 8 ways in a single max sized delay",
    author: "Don Stavely",
    categories: ["Delay", "Code snippet"],
    download: {
      spn: { file: "8_seconds_delay.spn" }
    },
    source_url: "http://www.spinsemi.com/forum/viewtopic.php?t=418",
    application: "Code snippet",
    commentary: [
      {
        written_by: "Mark S.",
        comments: { text: "At first I thought it wasn't working. Then 8 seconds later, it proved me wrong :)" },
      },
    ],
  },
  {
    name: "Reverse delay",
    description: "Simplified part of A+ Paradox delay",
    author: "igore pie",
    author_url: "mailto:igor@shift-line.com",
    controls: ["-", "Feedback", "Delay"],
    categories: ["Delay"],
    download: {
      spn: { file: "afx_reverse_delay.spn" }
    },
    source_url: "https://github.com/igorpie/Spin-FV-1/blob/master/afx_reverse_delay.spn",
  },
  {
    name: "Aliaser",
    author: "Frank Thomson, OCT Distribution",
    categories: ["Aliaser"],
    controls: ["Sample rate", "-", "-"],
    download: {
      spn: { file: "aliaser.spn" }
    },
    source_url: "http://www.spinsemi.com/forum/viewtopic.php?f=4&t=262&p=1116&hilit=aliaser#top",
  },
  {
    name: "Bit crusher",
    author: "Frank Thomson",
    categories: ["Bitcrusher"],
    download: {
      spn: { file: "crusher.spn" }
    },
    source_url: "http://www.spinsemi.com/forum/viewtopic.php?f=4&t=343",
    commentary: [
      {
        written_by: "Mark S.",
        comments: { text: "Definitely does as advertised. I could see this having a special place on somebody's pedal board, but it's niche for sure." },
      },
    ],
  },
  {
    name: "Hall - modified",
    categories: ["Reverb"],
    download: {
      spn: { file: "hall_goldmine.spn" }
    },
    controls: [ "Damping", "Level", "Time" ],
    commentary: [
      {
        written_by: "potul",
        comments: { text: `I think it was posted by Ice-9 in this topic, but I couldn't find it. https://www.diystompboxes.com/smfforum/index.php?topic=104291` }
      },
      {
        written_by: "Mark S.",
        comments: { text: "This sounds good. Unless I did something wrong, though, its controls are very subtle. Admittedly I didn't spend much time with this, though.", },
      }
    ],
  },
  {
    name: "LFSR",
    author: "Frank Thomson, OCT Distribution",
    categories: ["Code snippet"],
    download: {
      spn: { file: "lfsr_random.spn" }
    },
    source_url: "http://www.spinsemi.com/forum/viewtopic.php?f=4&t=245&p=1301",
    application: "Code snippet",
  },
  {
    name: "Multi program pitch shifter",
    author: "patb",
    description: "Inspired by commercial pedals. It has 6 programs, selectable by pot0",
    categories: ["Pitch"],
    controls: ["Program select", "Cross fade", "Wet / dry mix"],
    download: {
      spn: { file: "multipitch.spn" }
    },
    commentary: [
      {
        written_by: "patb",
        comments: { text: `Its got 6 programs, selectable by pot0.
the first 4 are dual shifts, that is 3 note harmonies.
Crossfade the 2 shifts with pot1, and crossfade effect and dry with pot2.

Fifth program is a single manual shift, with +/- 1 octave by pot1.
This one is alot of fun with a microphone.

Sixth is a detune chorus, with shift set by pot1.
This one sounds very nice.  Laughing

;pot0 6 program select, select one of 4 dual pitch shifts, manual pitch shift or detune chorus
;pot1 dual shift crossfade or single pitch
;pot2 crossfade between dry and shifts
`}
      }
    ],
  },
  {
    name: "Reverse delay",
    author: "Knut Helle",
    categories: ["Delay"],
    controls: ["Length", "-", "-"],
    download: {
      spn: { file: "reverse_delay.spn" }
    },
  },
  {
    name: "Sawtooth waveform generator",
    author: "slacker",
    categories: ["Code snippet"],
    download: {
      spn: { file: "sawtooth.spn" }
    },
    source_url: "http://www.spinsemi.com/forum/viewtopic.php?f=4&t=274&start=15",
    application: "Code snippet",
  },
  {
    name: "Reverb + Shimmer (Version 6)",
    author: "Alex Lawrow",
    description: "This routine is based on Mick Taylor's (Ice-9s) reverb loop and shimmer code with some changes such as...",
    categories: ["Pitch"],
    controls: ["Reverb time", "Treble", "Shimmer"],
    download: {
      spn: { file: "shimmer_drAlx.spn" }
    },
    commentary: [
      {
        written_by: "Alex  Lawrow",
        comments: { text: `This routine is based on Mick Taylor's (Ice-9s) reverb loop
and shimmer code with some changes such as:

1) Prime numbers for delay line lengths.
2) More linear mapping of pot sweep to reverb time.
3) Anti-aliasing filter before the pitch-shifter.
4) Shimmer level is controlled by feeding both the input signal
   and the reverb output into the pitch-shifter in varying amounts.
5) Pitch-shifted signal is fed into a delay line to give a couple of short delays.
   This lets the shimmer effect build up slowly in time.
6) Output is 100% wet.  Uncomment line at bottom to add dry signal.

;POT0 = Reverb time (0 to 10 seconds).
;POT1 = Amount of treble in reverb loop.
;POT2 = Shimmer level
`}
      }
    ],
  },
  {
    name: "Ionian",
    author: "Alex Lawrow",
    description: "Produces a major scale (Ionian mode) based on on whatever note you play into the input.",
    categories: ["Pitch"],
    controls: ["Volume", "Speed", "Number of notes (2 to 8)"],
    download: {
      spn: { file: "IONIAN.spn" }
    },
  },
  {
    name: "Arpeggio",
    author: "Alex Lawrow",
    description: "Produces a major chord arpeggio based on the root note you play into the input.",
    categories: ["Pitch"],
    controls: ["Volume", "Speed", "Number of notes (2 to 4)"],
    download: {
      spn: { file: "ARPEGGIO.spn" }
    },
  },
  {
    name: "Arpeggio",
    author: "Alex Lawrow",
    description: "Produces an  ascending arpeggio for a minor chord based on the root note you play into the input.",
    categories: ["Pitch"],
    controls: ["Volume", "Speed", "Number of notes (2 to 4)"],
    download: {
      spn: { file: "ARPEGGIO_MINOR.spn" }
    },
  },
  {
    name: "Slocum Phase Shifter",
    description: "From GA_DEMO - mods by Doug Slocum 10/20/2017",
    author: "Doug Slocum, Spin Semi",
    categories: ["Phase"],
    download: {
      spn: { file: "slocum-phaser.spn" }
    },
    source_url: "http://www.spinsemi.com/forum/viewtopic.php?f=4&t=707",
    controls: ["Phase rate", "Sweep width", "Number of stages"],
    commentary: [
      {
        written_by: "Doug Slocum",
        comments: { text: `Uses every last bloody program line!

;Pot0 = Phase rate (manual if fully CCW)
;Pot1 = Sweep width (or manual)
;Pot2 = Num of Stages (4,6,8,10)
`}
      },
      {
        written_by: "Mark S.",
        comments: { text: "I really enjoy using this. It's a good, solid phaser, but can really turn up its personality if you crank up the width and add more stages." }
      },
    ],
  },

  {
    name: "Geoffrey: Pitch shifted delay",
    author: "slacker",
    description: "Pitch shift is +5th, +7th, +1 Octave, +M3rd",
    categories: ["Pitch", "Delay"],
    controls: ["Delay", "Pitch select", "Feedback"],
    download: {
      spn: { file: "slacker-bf/bf_geoffrey.spn" }
    },
  },
  {
    name: "New octaver",
    author: "slacker",
    categories: ["Uncategorized"],
    controls: ["Dry mix", "Octave up", "Octave down"],
    download: {
      spn: { file: "slacker-bf/bf_newoctaver.spn" }
    },
  },
  {
    name: "Phaser",
    author: "slacker",
    categories: ["Flanger","Phaser"],
    controls: ["Feedback (+/-)", "Range", "Speed"],
    download: {
      spn: { file: "slacker-bf/bf_phaser.spn" }
    },
  },
  {
    name: "Digifuzzer",
    author: "slacker",
    categories: ["Distortion"],
    controls: ["Sample rate reduction", "Bit depth + distortion", "Volume"],
    download: {
      spn: { file: "slacker-bf/bf_digifuzzer.spn" }
    },
  },
  {
    name: "Johnny",
    author: "slacker",
    categories: ["Uncategorized"],
    controls: ["Speed", "Max delay", "Randomness"],
    download: {
      spn: { file: "slacker-bf/bf_johnny.spn" }
    },
  },
  {
    name: "Envelope Phaser",
    author: "David Rolo",
    author_url: "https://www.davidrolo.com/",
    categories: ["Filter", "Phaser"],
    controls: ["Rate", "Depth", "Regen"],
    download: {
      spn: { file: "drolo/envelope-phaser.spn" }
    },
  },
  {
    name: "Filter: env LP HP up",
    author: "David Rolo",
    author_url: "https://www.davidrolo.com/",
    categories: ["Filter"],
    controls: ["Sensitivity", "Filter Type", "Volume"],
    download: {
      spn: { file: "drolo/filter-env-LP-HP-up.spn" }
    },
  },
  {
    name: "Flanger",
    author: "David Rolo",
    author_url: "https://www.davidrolo.com/",
    categories: ["Flanger"],
    controls: ["Rate", "Feedback", "Range"],
    download: {
      spn: { file: "drolo/flanger.spn" }
    },
  },
  {
    name: "Pitch Step Glider.spn",
    author: "David Rolo",
    author_url: "https://www.davidrolo.com/",
    categories: ["Pitch"],
    controls: ["Rate","Depth","Glide"],
    download: {
      spn: { file: "drolo/pitch-step-glider.spn" }
    },
  },
  {
    name: "Random Loop Delay",
    author: "David Rolo",
    author_url: "https://www.davidrolo.com/",
    categories: ["Delay"],
    download: {
      spn: { file: "drolo/random-loop-delay.spn" }
    },
  },
  {
    name: "Reverb",
    author: "David Rolo",
    author_url: "https://www.davidrolo.com/",
    categories: ["Reverb"],
    controls: ["Decay", "Pre-delay", "Filter"],
    download: {
      spn: { file: "drolo/reverb.spn" }
    },
  },
  {
    name: "Ring Pitchulator",
    author: "David Rolo",
    author_url: "https://www.davidrolo.com/",
    categories: ["Ring Modulator", "Pitch"],
    controls: ["Ringmod rate", "Pitch blend", "Pitch"],
    download: {
      spn: { file: "drolo/ring-pitchulator.spn" }
    },
    commentary: [
      {
        written_by: "Mark S.",
        comments: { text: "If you want to prepare to be able to talk to our future robotic, alien overlords, make sure to put this on your pedalboard. Works especially well for single notes." },
      },
    ],
  },
  {
    name: "Resonator",
    categories: ["Uncategorized"],
    controls: ["Frequency", "Resonance", "-"],
    download: {
      spn: { file: "resonator.spn" }
    },
  },
  {
    name: "BM Pi",
    categories: ["Distortion"],
    controls: ["Gain", "Tone", "-"],
    download: {
      spn: { file: "bm-pi.spn" }
    },
  },
  {
    name: "Ping Pong Delay",
    author: "Frank Thomson",
    categories: ["Delay"],
    download: {
      spn: { file: "pingpong.spn" },
    },
    controls: ["Ping time", "Pong time", "Feedback"],
  },
  {
    name: "Soft Clipping Overdrive",
    author: "Jeroen Korterik",
    categories: ["Distortion"],
    download: {
      spn: { file: "softclipping_overdrive.spn" },
    },
    controls: ["Gain Threshold", "Volume", "Tone"],
  },

  {
    name: "Improved Octave Up",
    author: "Don Stavely",
    description: "This solves for the 'crossfade cancellation' issue...",
    categories: ["Octave", "Code snippet"],
    download: {
      spn: {
        file: "improved_octave_up.spn",
      }
    },
    source_url: "http://www.spinsemi.com/forum/viewtopic.php?f=4&t=467",
    commentary: [
      {
        written_by: "Don Stavely",
        comments: { text: `;Folks who have played with the pitch-shift routine for octave-up and octave-down know about the "crossfade phase cancellation" issue.
;For octave-down, you get a tremolo effect due to the slower ramp speed (-8192). But for octave-up, the fast ramp (16384) results in an unpleasant warble.
;We can't use a longer delay than 4096, so we are stuck with it, right?

;Here is a trick I just came up with: Do two pitch shifts in a row, each shifting up by the square root of two.
;The magic ramp speed is 6783. Voila, an octave up with a pleasing tremolo instead of the warble.
;It requires another 4096 memory and 8 instructions, but still only 1 ramp (so you can still use the other for octave down, etc).

;Yes, the tradeoff is latency. In the application I am working on I am going for more of a chorus effect - i.e. multiple instruments rather than a single instrument like a 12-string.

;Notice that I write 512 words into the 4096-word delay. This reduces the latency by that amount.
;The reason you can do this is that the crossfade waveform is zero for the first 1/8th of the delay. If you try a 2048 word delay you will have to change the "wra delay1+512,0" to "wra delay1+256, 0" in both places. This is probably why it sounded worse than the standard single-step 4096 algorithm.

;Frank commented in an older thread that this trick of writing 1/8th of the way into the buffer shouldn't work.
;I assure you (and Frank) that does. It is totally glitchless, and reduces the average latency by 1/4 for free. I don't think Frank considered it carefully.
  `},
      },
    ],
  },
  {
    name: "7-Band Parametric EQ",
    categories: ["Code snippet"],
    download: {
      spn: { file: "parametric-eq-7.spn" },
    },
    application: "Code snippet",
  },
  {
    name: "Slow Gear",
    author: "patb, Don Stavely",
    categories: ["Uncategorized"],
    controls: ["Attack rate", "-", "-"],
    download: {
      spn: { file: "slowgear-2.spn" },
    },
    source_url: "http://www.spinsemi.com/forum/viewtopic.php?f=4&t=174",
  },
  {
    name: "Slow Gear (simple)",
    author: "Alex MAK",
    categories: ["Uncategorized"],
    download: {
      spn: { file: "slowgear-simple.spn" },
    },
    source_url: "http://www.spinsemi.com/forum/viewtopic.php?f=4&t=174",
  },
  {
    name: "Thru Gain",
    categories: ["Code snippet"],
    download: {
      spn: { file: "thru-gain.spn" },
    },
    application: "Code snippet",
  },
  {
    name: "Tremolo w/ Multiple LFO Waveshapes",
    author: "Slacker",
    categories: ["Tremolo"],
    download: {
      spn: { file: "tremolo-shapes.spn" },
    },
    controls: ["Wave shape", "Depth", "Speed"],
    source_url: "http://www.spinsemi.com/forum/viewtopic.php?f=3&t=516",
    commentary: [
      {
        written_by: "Slacker",
        comments: { text: "If anyone's interested here's a tremolo I did using pot skip routines to do Sine, rectified sine both ways so pointy or humpy :) up and down ramps, triangle, trapezoid and square. All the wave shapes are scaled to the same range. Some of the wave shapes aren't that useful it was more an exercise in generating them than an attempt at a decent trem." },
      },
      {
        written_by: "Mark S.",
        comments: { text: "I'm getting some really prominent clicking on some of the wave shapes." }
      },
    ],
  },
  {
    name: "Tremolo w/ Multiple LFO Waveshapes (no clicks)",
    author: "Slacker, mstratman",
    categories: ["Tremolo"],
    download: {
      spn: { file: "tremolo-shapes-reduced.spn" },
    },
    controls: ["Wave shape", "Depth", "Speed"],
    source_url: "http://www.spinsemi.com/forum/viewtopic.php?f=3&t=516",
    commentary: [
      {
        written_by: "Mark S.",
        comments: { text: "This is a version of slacker's tremolo that removes 2 wave shapes that were giving clicky sounds.  It features: sine, hump, hyper-triangle, triangle, trapezoid, square" }
      },
      {
        written_by: "Slacker",
        comments: { text: "If anyone's interested here's a tremolo I did using pot skip routines to do Sine, rectified sine both ways so pointy or humpy :) up and down ramps, triangle, trapezoid and square. All the wave shapes are scaled to the same range. Some of the wave shapes aren't that useful it was more an exercise in generating them than an attempt at a decent trem." },
      },
    ],
  },
  {
    name: "Whammy",
    author: "deepMago!",
    categories: ["Pitch"],
    controls: ["Whammy", "Pitch range", "-"],
    download: {
      spn: { file: "whammy.spn" },
    },
    source_url: "http://www.spinsemi.com/forum/viewtopic.php?f=4&t=296",
  },
  {
    name: "Pitch Shifters + Chorus/Flanging",
    author: "Audiofab",
    description: "A bank of 8 patches that use chorus alone, pitch shifting and chorus, or pitch shifting and flanging. Includes the SpinCAD file for you to play around with and a JSON file for the Audiofab fv1_programmer utility.",
    author_url: "http://audiofab.com/",
    categories: ["Pitch", "Chorus", "Octave"],
    download: {
      zip: { url: "https://audiofab.com/s/20240604-Audiofab-Pitch-Shift-Chorus.zip" },
    },
    controls: ["Speed", "Depth/Level", "Feedback/Level"],
    source_url: "https://audiofab.com/downloads",
  },
  {
    name: "Reverb Algorithms",
    author: "Audiofab",
    description: "A bank of eight, classic reverbs for your Easy Spin pedal. Where applicable, the SpinCAD Designer source file is provided. All source code is included in the fv1-programmer JSON file so you can directly program your pedal with the Audiofab fv1_programmer utility.",
    author_url: "http://audiofab.com/",
    categories: ["Reverb", "Shimmer", "Delay"],
    download: {
      zip: { url: "https://audiofab.com/s/20240617-Reverbs.zip" },
    },
    controls: ["Delay/Tone", "Reverb Time", "Level/Mix"],
    source_url: "https://audiofab.com/downloads",
  },
  {
    name: "Distortion Algorithms",
    author: "Audiofab",
    description: "A bank of 8 patches featuring various distortion algorithms in some cases combined with chorus and filtering. Includes the SpinCAD file for you to play around with and a JSON file for the Audiofab fv1_programmer utility.",
    author_url: "http://audiofab.com/",
    categories: ["Distortion", "Chorus"],
    download: {
      zip: { file: "audiofab/Audiofab_Distortion_Programs.zip" },
    },
    controls: ["Gain", "Tone", "Level"],
    source_url: "https://audiofab.com/downloads",
  },
  {
    name: "Test Programs",
    author: "Audiofab",
    description: "A bank of 8 patches featuring various test algorithms to ensure your FV-1-based pedal is working properly. Includes the SpinCAD file for you to play around with and, a JSON file for the Audiofab fv1_programmer utility and documentation.",
    author_url: "http://audiofab.com/",
    categories: ["Code snippet"],
    download: {
      zip: { file: "audiofab/easy-spin-test-programs-v1.0.zip" },
    },
    application: "Code snippet",
    source_url: "https://audiofab.com/downloads",
  },
  {
    name: "Tap Tempo Drum",
    author: "Michele",
    special_pcb: true,
    description: "SpinCAD delay patch with tap tampo block. This connects to a drum delay patch, but can be applied to every delay patch. The tap tampo block works perfect.  The only problem is a little kind of 'swish' sound if you tap while playing. See the 'sourced from' URL below for the schematic.",
    categories: ["Code snippet","Delay"],
    download: {
      spn: { file: "tap_drum.spn" },
      spcd: { file: "tap_drum.spcd", }
    },
    application: "Code snippet",
    source_url: "/images/tap_schematic.jpg"
  },
]