This is a simple to build device that converts your own human voice into a superior robot voice. It also includes a number of sweet features like an audio-in jack so that you can plug in all of your favorite instruments, microphones and music players, a vibrato mode and awesome pitch shifting buttons. It can be shifted two whole octaves in either direction. This provides for endless hours of fun (at the expense of everyone around you).

To here some crazy robot and pitch shifting action check out the file posted below.

Step 1: Go get stuff

You will need:

- And IKEA clock body
- An adjustable fluorescent desk lamp
- A HT8950 voice modulator
- An 18-pin socket
- 4 SPST buttons
- Condenser mic
- Parts for the circuit (see next step for details)
- Wire
- 2 1/8" audio jacks
- A power source
- Misc hardware
I'm wondering if I would be able to do this for a cosplay and place the mic and speaker in a lower half, face resperator. And have the cable going to the circuit that's down on the hip. Would that be possible?
<p>SIR can we have a copy of your circuit diagram of this project</p>
Building a transformer costume for my son, will this make his voice sound like a transformer....iron hide specifically.
Good stuff
Ehm... the data sheet is now not available ^^
The chip and the Datasheet is available at Sparkfun.com
The &quot;data sheet&quot; link is giving me an error.
Randofo CAn You Give Me TE Circuit Diagram Of That Project !!! I Want to do IT!!
Looks like he has two different circuits on that bread board. That little 8 pin IC is missing from the strip board... I think.
*perf board.
is this expensive?????????
Darn I dont have one of those chips. Mabey Marvin will loan me his space modulator, and I can use that...
Where is the circuit diagram......?
Hi,<br>I&acute;m trying to build the Voice Modulator and I&acute;ll thank you if you tell me which microphone did you use.<br>Thanks a lot<br>Will
I used an electret microphone:<br /> <br /> <a href="http://www.goldmine-elec-products.com/prodinfo.asp?number=G9445">http://www.goldmine-elec-products.com/prodinfo.asp?number=G9445</a>
Could you work this into a synth oscillator?
I don't see why not, just replace the micro phone with the synths output. <br>And don't forget to hook the black wire of the mic to ground. <br> <br>Ps. Did you make your own synth?
do yo remove the 200 ohm pot
That mp3 was hilarious<br>
Where did you get the chip from? i checked all the usual places (radioshack, amazon, Frys) and i cant find it anywhere.
Ebay. I got 10 for about $20.
hey,thank you very much!Im gonna give it a try~!
Can you pass the diagram circuit?
You get points for functionality and style!!! =)
Please give me circuit diagram. Becoz I can try this.....
if you'r too lazy to breadboard etc... check out for a Velleman mini-kit (MK171). Its also funny to bend it. and you can also use it for a stomp box.
A HT8950 voice modulator chip. :( I thought you were going to do it electronically/mechanically.
&nbsp;What's going on on that board? &nbsp;I see an extra IC and what looks like a transistor.<br /> <br /> I'm thinking your &quot;they can figure it out&quot; scheme may not be the best policy. &nbsp;I am trying to build this right now, but I am trying to avoid building it and finding that it doesn't work without &nbsp;this or that extra component.<br /> <br /> If you did add extra parts (it looks as though you did) what were they for?<br />
NICE!<br />&nbsp;
How big is this thing?
About the size of a wall clock or stuffed owl. The circuit is pretty small. The casing can be miniaturized.
Ok, and can you make the microphone attached to a cord that can be ran up, say, a jacket sleeve? I suppose you could, but how?
I have that same laptop lol
How much did all the parts cost?
~BINGO~ That's exactly -eh, what I was looking at... Now as I read through the threads (how could I miss it...?) it's all clear now. Thanks
you have a transistor; not listed in your 'to get' list... Wold be nice to know~
No I don't. Maybe you are looking at the 7805 voltage regulator.
I love the idea
i bought 3 off ebay for &lt;$10 less than a year ago. ive had one sitting on a breadboard for 8 months and still havent put it on perfboard, even though this is a really cool bendable 8bit modulator =( maybe ill finally do it today<br/>
Maybe you could download DIY Layout Creator <a rel="nofollow" href="http://www.synthdiy.com/show/?id=2489">http://www.synthdiy.com/show/?id=2489</a> and draw a nice circuit diagram for this circuit. It would be easier to follow instructions that way ;)<br/>
I normally include schematics, but didn't see much point in redrawing something that could be found on the data sheet. There are only a few minor changes which are easy to figure out (such as the SPDT toggle switch between the mic and audio in and the audio out jack instead of the amplifier stage).
Ok, it was just a suggestion... I have started to use the program (DIY Layout Creator), and it is quite useful for experiment board projects :) Now I just need to find the HT8950 chip in Sweden :)
If you look on the Internet, you can find the suppliers but there are also some alternatives mentioned like from Yamaha.
AWESOME 'ible, can you get a different voice to come out... e.g. the voice that kidnappers use (im not a kidnapper)
So long as you are not a kidnapper, then, yes. Yes, you can.
How could i do that?
Shift the pitch down rather than up.
is that .cdr download a circuit diagram? If it isn't, could you post one please because it is quite hard to see where components go.
Check the link to the data sheet that I post on that step.

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Bio: My name is Randy and I run the Instructables Design Studio. I'm also the author of the books 'Simple Bots,' and '62 Projects to ... More »
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