Voice Attack

"VoiceAttack stores its data in a single file named, 'VoiceAttack.dat' ... "C:\Users\YOUR_USER_NAME\AppData\Roaming\VoiceAttack". If you want to back up yourVoiceAttack data in one big chunk, the VoiceAttack.dat file is the one you will want to save."

You can add custom sounds for each action in the edit screen under > Other > Sounds > Play a Sound

To change the listen / stop listening sounds copy sys_on.wav and sys_off.wav into the Voice Attack install folder Program Files (x86)\Steam\steamapps\common\VoiceAttack