Clownfish Voice Changer - Clownfish Voice Changer is multiple voice changing software for various chatting and gaming platforms.
Show Cue System - Show Cue Systems
Voicemod - What are the voice changers? How do these work? Are these illegal? What is a soundboard? Find all the answers here. Voicemod - The Best FREE Voice Changer
Soundplant - Play sound files with the computer keyboard
JN Soundboard - An open-source hotkey soundboard program
QLab - QLab, Live show control for Mac OS X.