ValueError: embedded null character

[superanya]

Try to prepare files with README:

1. Run main.py under the python-training folder
2. In the GUI, click "Browse" next to "File with laughter audio file names"
3. Select the file containing a series of paths to laughter training files
4. Click "Browse" next to "File with non-laughter audio file names"
5. Select the file containing a series of paths to non-laughter training files
6. Click "Prepare" to generate a wekaFile.arff file within the same directory as main.py.

But I have an error:

File "C:\Users\...\Python\Python37\lib\site-packages\scipy\io\wavfile.py", line 544, in read
    fid = open(filename, 'rb')
ValueError: embedded null character.

How can I solve this problem?