@mineola

- Extract from your voice zip audio folder
- you must edit all 300+ files with auda city or some prog like this ( don't open all at once becouse audacity will crash )
- increase all audio files for 6db ( don't set more then 6db becouse audio will be damaged )
- save audio folder back in voice.zip

You will now have audio louder

p.s.
If you know how to use audacity, you will spend cca 4 hours to edit all voice files.