Real time sound processing

Mini app for audio filtering in real-time using butterworth filter.

Installation

# Clone repository
git clone https://github.com/Supercili0usMe/Real-time-sound-processing.git

# Requirements if you don't have them
pip install -r requirements.txt

# Run
python main.py

Usage

Main window looks like this:

There are 4 buttons in settings tab (настройки):

• Start (Старт) - starts the audio stream and audio processing
• Stop (Стоп) - stops the audio stream and audio processing
• Without filter (Без фильтра) - starts the audio stream and audio processing without filter
• Low pass filter (Фильтр нижних частот) - starts the audio stream and audio processing with low pass filter
• High pass filter (Фильтр верхних частот) - starts the audio stream and audio processing with high pass filter
• Band pass filter (Полосовой фильтр) - starts the audio stream and audio processing with band pass filter
• Band stop filter (Режекторный фильтр) - starts the audio stream and audio processing with band stop filter

Second tab Graphs (Графики) contains 2 graphs:

• Waveform (Волновой сигнал) - shows the waveform of input audio signal
• Frequency spectrum (Спектр частот) - shows the frequency spectrum of input audio signal

If you choose one of the filters, it shows cutoff frequency which you can change in settings tab, like this:

In that case, the lower frequency for band stop filter is 1000 Hz, and the higher frequency is 2000 Hz.