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 didnt 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 sing= le > 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 .