Clean-up ComputeKaldiPitch residue

Follow up of: pytorch#3368

Remove files and lines no longer used.

CONTRIBUTING.md

@@ -74,7 +74,6 @@ python setup.py develop
 Some environmnet variables that change the build behavior
 - `BUILD_SOX`: Deteremines whether build and bind libsox in non-Windows environments. (no effect in Windows as libsox integration is not available) Default value is 1 (build and bind). Use 0 for disabling it.
 - `USE_CUDA`: Determines whether build the custom CUDA kernel. Default to the availability of CUDA-compatible GPUs.
-- `BUILD_KALDI`: Determines whether build Kaldi extension. This is required for `kaldi_pitch` function. Default value is 1 on Linux/macOS and 0 on Windows.
 - `BUILD_RNNT`: Determines whether build RNN-T loss function. Default value is 1.
 - `BUILD_CUDA_CTC_DECODER`: Determines whether build decoder features based on CUDA CTC decoder. Default value is 1. (`USE_CUDA` has to be 1.)
 

docs/source/functional.rst

@@ -80,7 +80,6 @@ Feature Extractions
    compute_deltas
    detect_pitch_frequency
    sliding_window_cmn
-   compute_kaldi_pitch
    spectral_centroid
 
 Multi-channel

tools/setup_helpers/extension.py

@@ -34,7 +34,6 @@ def _get_build(var, default=False):
 
 
 _BUILD_SOX = False if platform.system() == "Windows" else _get_build("BUILD_SOX", True)
-_BUILD_KALDI = False if platform.system() == "Windows" else _get_build("BUILD_KALDI", True)
 _BUILD_RIR = _get_build("BUILD_RIR", True)
 _BUILD_RNNT = _get_build("BUILD_RNNT", True)
 _USE_FFMPEG = _get_build("USE_FFMPEG", False)
@@ -117,7 +116,6 @@ def build_extension(self, ext):
             "-DCMAKE_VERBOSE_MAKEFILE=ON",
             f"-DPython_INCLUDE_DIR={distutils.sysconfig.get_python_inc()}",
             f"-DBUILD_SOX:BOOL={'ON' if _BUILD_SOX else 'OFF'}",
-            f"-DBUILD_KALDI:BOOL={'ON' if _BUILD_KALDI else 'OFF'}",
             f"-DBUILD_RIR:BOOL={'ON' if _BUILD_RIR else 'OFF'}",
             f"-DBUILD_RNNT:BOOL={'ON' if _BUILD_RNNT else 'OFF'}",
             f"-DBUILD_ALIGN:BOOL={'ON' if _BUILD_ALIGN else 'OFF'}",

torchaudio/csrc/pybind/pybind.cpp

@@ -5,7 +5,6 @@ namespace torchaudio {
 namespace {
 
 PYBIND11_MODULE(_torchaudio, m) {
-  m.def("is_kaldi_available", &is_kaldi_available, "");
   m.def("is_rir_available", &is_rir_available, "");
   m.def("is_align_available", &is_align_available, "");
   m.def("cuda_version", &cuda_version, "");

torchaudio/csrc/utils.cpp

@@ -7,14 +7,6 @@
 
 namespace torchaudio {
 
-bool is_kaldi_available() {
-#ifdef INCLUDE_KALDI
-  return true;
-#else
-  return false;
-#endif
-}
-
 bool is_rir_available() {
 #ifdef INCLUDE_RIR
   return true;

torchaudio/csrc/utils.h

@@ -2,7 +2,6 @@
 #include <torch/torch.h>
 
 namespace torchaudio {
-bool is_kaldi_available();
 bool is_rir_available();
 bool is_align_available();
 c10::optional<int64_t> cuda_version();