1)   MorphVOX - Voice Changer 3.3
Voice changing software for online games. MorphVOX Pro Voice Changer will transform your voice. Use it to change your voice to match your personality. Disguise your identity or add additional themed voices and sound effects for even more fun.
Voice Changer, Voice, Change, Changer, Changing, Software, Games, Chat, voip, teamspeak,

 2)   Pb Vocoder 1.0
Pb Vocoder is a software application that can make a human voice sound like a singing synthesizer, a robot, a demon, and everything in between. All in a simple to use, lightweight package! Renders audio to disk, or directly to your soundcard.
vocoder, speech processor, audio effect, voice changer, dsp, voice transformer,

 3)   Fake Voice 3.33
Fake Voice is a voice changer software that helps you change your voice to male, female, old, young, teen, hard, robot, shrill, or some one totally new. Just integrate Fake Voice with your IM and do voices with your friends.
Free Voice Changer, voice changer,

 4)   Scramby FunVocoder 2.0.40.0
Add-on for VoIP telephones. Scramby is an entertaining add-on for your software telephone that will add fun to any conversation. Integrated media library with 10 VST plug-ins, 40 voice effects, various background noises and 130 fun sounds.
Vocoder Teamspeak Voice Tuner Changer Morph Synthesizer VoIP Skype, voice distortion, voice changer, VST effects, pranks, VST voice tuning, online chat, funny voices, online gaming, mmorpg,

 5)   MorphVOX Pro Voice Changer 4.0.5
Voice changing software for online games, VoIP, and the multimedia studio.
Voice Changer, Voice-Overs, Change, Morphing, Changing, Software, Games, Chat, voip, teamspeak,