Changelog

v0.1.0a

v0.1.0a2

2020-08-13

Bug fixes

• added use_beg_ms parameter in soundpy.dsp.vad: improved VAD recognition of silences post speech.

Features

• added GPU option: provide instructions and Docker image for running SoundPy with GPU

• added extend_window_ms paremeter to soundpy.feats.get_vad_samples and soundpy.feats.get_vad_stft: can extend VAD window if desired. Useful in higher SNR environments.

• added soundpy.feats.get_samples_clipped and soundpy.feats.get_stft_clipped to clip off beginning and ending silences.

• added beg_end_clipped parameter to soundpy.feats.plot_vad to visualize VAD by clipping the beginning and ending silences (if True) or VAD instances throughout the signal (if False).

• added soundpy.models.dataprep.GeneratorFeatExtraction class for extracting and augmenting features during training (still experimental).

• added soundpy.models.builtin.envclassifier_extract_train as an example of extracting and augmenting features during training (still experimental).

• added soundpy.dsp.clip_at_zero to enable smoother concatenations of signals and enables removal of clicks at beginning and ending of signals.

• added soundpy.dsp.remove_dc_bias to enable smoother concatenations of signals

• added and set remove_dc parameter to True in soundpy.files.loadsound and soundpy.files.savesound to ensure signals all have mean zero.

• added mirror_sound option to soundpy.dsp.apply_sample_length as a way to extend sound.

• added soundpy.dsp.ismono to check if samples were mono or stereo.

• added soundpy.dsp.average_channels to average sample amplitudes across channels, e.g. to identify where high energy begins / ends in the signal without disregarding additional channels (if stereo sound).

• added soundpy.dsp.add_channels for adding additional channels if needed (e.g. for applying a ‘hann’ or ‘hamming’ window to stereo sound)

• added stereo sound functionality to soundpy.dsp.add_backgroundsound, soundpy.dsp.clip_at_zero, soundpy.dsp.calc_fft, soundpy.feats.get_stft, soundpy.feats.get_vad_stft

Other changes

• name change: from pysoundtool to soundpy: simpler

• updated dependencies to newest versions still compatible with Tensorflow 2.1.0

• moved soundpy.dsp.get_vad_samples to soundpy.feats.get_vad_samples

• moved soundpy.dsp.get_vad_stft to soundpy.feats.get_vad_stft

• name change: allow soundpy.feats.normalize to be used as soundpy.normalize

• removed pysoundtool_online and mybinder button as maintaining the online version was not easily done. Aim to reimplement at some point.

v0.1.0a1

Initial public alpha release.