DoNaut

Add-on for instant messengers and internet phone software. Change and add effects to your voice, sound like anything from a big giant to a little chipmunk. Share your favorite music when you calling your friends. Add background sounds and sound effects to your phone conversation. Text to speech, you write, your friends listen. You can also use DoNaut to download free phone signals and sound effects as WAV, MP3 or OGG files.

Version 2.0.1.1 adds new user interface, share music, Text to speech, More voice changer effects reverb, distortion, resonant filter and equalizer, record audio using external audio software.