Robot/Voice Changer IC

[dano12]

I saw mention of a chip that is designed for voice-changing application--I think it was on this forum in the last few days. I forgot to bookmark it, arghhh, and now can't find it! Anyone remember what it was?

Thanks!

EDIT: Whoops, found it. The Holtek 8950.

http://www.holtek.com/english/docum/consumer/8950.htm

[southtown]

simple vibrato pedal too?

[dano12]

simple vibrato pedal too?

Yep, it looks like this would be fun. I'm going to work up a schematic with a JFET buffer front end to better match the guitar's impedance and give it a shot.

[caress]

yeah this is a great circuit!  i'm working on a version right now with some different switching options, an additional LFO and some circuit bends...maybe a boost?  although it is damn loud.
you can get some really cheap HT8950 chips on ebay.  i scored 50 for around $20 and they're something like $5 or $8 each on smallbear...   anyways, this won't exactly work for a simple vibrato in the VB-2 or univibe sense.  the sound is really crunchy, lofi almost sounds in some ways similar to a bitcrusher/ringmod...i'll be working on a design for sale in the near future!

[zachomega]

So not a good vibrato sound then? 

-Zach Omega

[Dean Hazelwanter]

Check this out:

http://www.generalguitargadgets.com/index.php?option=content&task=view&id=87&Itemid=115

[dano12]

Check this out:

http://www.generalguitargadgets.com/index.php?option=content&task=view&id=87&Itemid=115

Hi Dean, yep I found that also this morning. Looks very intriguing. Thanks for the design!

[caress]

what i'm working on is based off that design...definetly not a vibrato in the magnatone sense...just so you know.  it is pretty rad, though!

[Dan N]

I have a bunch of those too.

Of course, they are still inside their protective enclosure: