audio_dirs = AudioDirectory.scan(audio_dir) Return nothing

[qasimali-byte]

        import os
        
        from micmon.audio import AudioDirectory, AudioPlayer, AudioFile
        from micmon.dataset import DatasetWriter
        
        basedir = os.path.expanduser('~/BabyCare')
        audio_dir = os.path.join(basedir, 'audio/sample_1')
        print(audio_dir)  # print just [ ]
        datasets_dir = os.path.join(basedir, 'data')
        cutoff_frequencies = [250, 7500]
        
        # Scan the base audio_dir for labelled audio samples
        audio_dirs = AudioDirectory.scan(audio_dir)
        print(audio_dirs)
        
        # Play some audio samples starting from 01:00
        for audio_dir in audio_dirs:
            with AudioFile(audio_dir, start='01:00', duration=5) as reader, \
                    AudioPlayer() as player:
                for sample in reader:
                    player.play(sample)
        
        # Plot the audio and spectrum of the audio samples in the first 10 seconds
        # of each audio file.
        for audio_dir in audio_dirs:
            with AudioFile(audio_dir, start=0, duration=10) as reader:
                for sample in reader:
                    sample.plot_audio()
                    sample.plot_spectrum(low_freq=cutoff_frequencies[0],
                                         high_freq=cutoff_frequencies[1])
        
        # Save the spectrum information and labels of the samples to a
        # different compressed file for each audio file.
        for audio_dir in audio_dirs:
            dataset_file = os.path.join(datasets_dir, os.path.basename(audio_dir.path) + '.npz')
            print(f'Processing audio sample {audio_dir.path}')
        
            with AudioFile(audio_dir) as reader, \
                    DatasetWriter(dataset_file,
                                  low_freq=cutoff_frequencies[0],
                                  high_freq=cutoff_frequencies[1]) as writer:
                for sample in reader:
                    writer += sample