vak.prep.spectrogram_dataset.audio_helper.files_from_dir# vak.prep.spectrogram_dataset.audio_helper.files_from_dir(audio_dir, audio_format)[source]# get all audio files of a given format from a directory or its sub-directories, using the file extension associated with that annotation format. Parameters: audio_dir (str) – path to directory containing audio files. audio_format (str) – valid audio file format. One of {‘wav’, ‘cbin’}. Returns: audio_files – of paths to audio files Return type: list