Feature Description

In preprocess.py, you use AudioSegment.from_file to load the audio files. According to definition of this function, it seems it accepts a bunch of file formats.
but at the previous line, you restrict the user to wav files for ... in label_dir.glob("*.wav")
Is there a reason to that? Mp3/ogg/etc. files would be useful, as they take less place on the disk.

Use Case

Basic preprocess then train, as in README.

Solution

replace .glob('*wav') by a list of formats pydub accepts. I didn't find a list yet, but the implementation of from_file gives us some hints of the formats accepted.