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Voice changers Answered

I know voice changers have been done, but theres only 2 instructables for some rather simple changers and other forum queries are quite old.

What I'm looking for is a diy, real time voice changer circuit that can alter pitch and modulation, preferably with pots for fine tuning rather than presets, hopefully without the tinny sound I hear from the majority of samples I've listened to. An amped output with volume control would be cool too to overpower the users voice a bit easier.

I'm looking for an output akin to this as an ideal.

I'm no stranger to micro electronics, I can read codes and, with a little review, understand gates and ICs but still have no clue how to design my own circuits to do more than flipflop and turn things on and off.
Any ideas ? Kits, DIY plans etc ? Simple and portable is better, want to incorporate it into a costume.


Is that all plug and play or is there coding to do on the arduino or the wave shield ? I've never worked with an arduino before...

all the coding is there to download. Just follow all the tutorials. Maybe some soldering to connect the parts to make it portable. It's a good project to jump into using an arduino.

Damn exchange rate... would burn me for $140ish canadian for the kit ! :(

If you need it real quick you might have to compromise and get one of those kid's toy voice changers and deal with it. Maybe you can hack it and circuit bend it later.

There have been a lot of projects back in the day of electronic music.
In todays times everything requires a microprocessor and more or less programming.
For mobiles and tablets you can get apps to the job to some extend and on a laptop or PC just playing with the settings for the soundcard can give good results too.
Most cards use a Realtek chipset and the drivers allows for audio effects of all sorts.
Sure it is for the output, but for a voice changer situation it does not really matter if the input or output is scrambled.
Some electrinc shops still have kits available that allow "voice encryption", basically the audio signal is digitalised and chopped up.
A few of these allow the adjustment of parameters through resistors and at very low levels distort a voice so it can be still used to listen but not really to find out who is talking.
Be aware though that in most countries the use o voice changers on phones or during conversations in general can be an offence or even a crime.