Found i (HT8950). And apparently the Velleman kit uses it. The demos=20 I've found on youtube seem to be meh to decent, so perhaps I can make=20 some mods to clean it up. It's just $10 so I'll get one anyway. Cheers, -Neil. On 6/15/2018 8:14 AM, Michael Johnston wrote: > Hi there was an IC a few years back made by Holtek that you could use for > this purpose. I think you could buy it from digikey at the time and I did= nt > get one! Michael Johnston > > On Fri, Jun 15, 2018 at 4:00 AM James Burkart > wrote: > >> You might want to consider building a vocoder. Once upon a time it was a >> fairly complex analog circuit, but now you can get the function in a sin= gle >> chip. >> >> http://www.cmlmicro.com/products/ralcwi-vocoder-ics/ >> >> >> -- >> Sincerely, >> >> James Burkart >> *Filmmaker & Documentarian* >> >> *Burkart Studios* >> 925.667.7175 | Personal >> 415.738.2071 | Office >> >> *Web:* burkartstudios.com >> *Facebook:* facebook.com/burkartstudios >> >> On Fri, Jun 15, 2018 at 2:04 AM, Justin Richards < >> justin.richards@gmail.com> >> wrote: >> >>> Hi Neil, >>> >>> It appears this needs to process the audio in real time. >>> >>> If not some online text to voice sites may be of use. >>> >>> I recently got a bunch of phrases generated then processed in audacity. >> The >>> varios audio files are then triggered as needed. >>> >>> I am curious if audacity can process in real time, then run thru a pi. >>> >>> Justin >>> >>> >>> >>> >>> On 15 Jun 2018 04:08, "Neil" wrote: >>> >>> Anyone know of a good quality robot voice changer that will take a >>> headphone-level signal, and spit out either a headphone level signal or >>> an amplified signal? The ones I've found so far get poor reviews for >>> sound quality and I feel like the basic on-board amps are a significant >>> part of that, so unamplified is fine and I'll add a separate amp. This >>> will be used for a robot project, and the voice needs to sound like a >>> friendly robot that should appeal to kids. >>> >>> Though I would prefer a pre-built device (as I'm on a very tight >>> schedule), I'm tagging this as EE in case anyone has a good circuit or >>> kit) for this. >>> >>> Cheers, >>> -Neil. >>> >>> >>> >>> -- >>> http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive >>> View/change your membership options at >>> http://mailman.mit.edu/mailman/listinfo/piclist >>> -- >>> http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive >>> View/change your membership options at >>> http://mailman.mit.edu/mailman/listinfo/piclist >>> >> -- >> http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive >> View/change your membership options at >> http://mailman.mit.edu/mailman/listinfo/piclist >> --=20 http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .