DoNaut is a small freeware program that lets you add sound effects, background noises (e.g. an office) and change your voice during Skype or instant messaging calls. Aw c’mon, who wouldn’t want to sound like a chipmunk while talking to their boss with hospital sounds going on in the background? The $14.95 full version gives you more of everything. Yeah….
Change and add effects to your voice. Add background sounds and sound effects to your phone conversation. Share your music with your friends using you favorite music player such as iTunes, WinAmp, Microsoft media player. Text to speech, you write, your friends listen.