experimented, experimented, and when opening wav files (even those that come with the program)I started getting an error:
Acces violation
Press OK to ignore and risk data corruption
As a result, I realized that
the name should only contain English letters
and the path name should only contain English letters
If you open Bird1.wav, Bird2.wav, Bird3.wav, and Frog files.wav error occurs:
Not enough samples! A1.5 second sample is recommended.
Could not import
If the extension is WAV and not wav, the error occurs:
Incompatible file exttension. Only wav and tss files can be imported!