Change your voice over the phone in real time using a computer or digital processor.
This project converts an old desktop telephone into a versatile audio mixing station that lets you route your telephone calls through an effects processor in order to create a state of the art voice changer. By using a real time computer voice filter or a professional quality effect box, you can change your voice in ways that will make you sound like a completely different person. You can make a man sound like a woman, or a girl sound like a man, or a man sound like an elderly lady, or any possible combination imaginable with results that will fool anyone.
Unlike those "spy toy" voice changers that make you sound like a funny cartoon, a real vocal effects unit or computer vocal filter will alter a voice in a perfectly convincing manner, allowing fine control over both the formant (gender) and the pitch of your voice. Sure, you can have a lot of fun with evil and chipmunk voices as well, but if you really want to mask your voice identity in a convincing manner then this useful device will allow you to connect any microphone compatible audio processing unit into your phone so you can alter your voice in real time.