Voice quality has changed when changing pitch
I like to use Google wavenet voices and create mp3 audio books. After some time it was time to create new books [Slovak language, there is only one voice], I changed a pitch to 0.80 which sounds better, but I discovered it sounds different then some months ago, it used to be more smooth and easier to listen.
I tried to find other app with this feature and discovered when I change pitch there, it sounds different then with Voice Aloud Reader. So I don't think it is a Google problem. Has anything changed recently?