Yea but the atarivox is def based on the speakjet:
http://atariage.com/forums/blog/148/ent … nthesizer/

Here is an arduino project based on it:
http://forum.arduino.cc/index.php?topic=8039.0

Cool project link, serious knob action! Too bad the guy's homepage is down, would like to hear it in action.
Here is another Soundgin project
http://www.notesandvolts.com/2013/03/na … ld-it.html

Here is an arduino project based on it:
http://forum.arduino.cc/index.php?topic=8039.0

Im pretty sure that the same chip!

You can also buy a commercial synth with it
http://modularsquare.com/Flame-MIDI-Tal … h-s546.htm

Think the GinSing's Babblebot chip is the Soundgin, but pretty close to a SpeakerJet.
yogi

You can also buy a commercial synth with it
http://modularsquare.com/Flame-MIDI-Tal … h-s546.htm

I was lurking AtariAge and came across some AtariVox games in the store and some threads about it.
It's basically an Atari version of the Intellivoice for the Intellivision and The Voice for the Odyssey 2, according to this post:
http://atariage.com/forums/blog/148/ent … nthesizer/
I can't be the only one who can see the musical potential in this, right? Has anyone used this (or The Voice or Intellivoice) in a song?

A thought I had for a cart would be a very basic vocoder, you select the phonemes and play it back, like an Atari Speak-and-Spell, but I'm not knowledgeable enough with Atari programming to even know if it is physically possible to make, let alone actually code it. If there was one, though, I'd buy it in a heartbeat.

Yea I had the same thoughts, but never got hold of one. It would be cool  also on a 800XL imo
Here is a simular project for midi control:
http://www.midibox.org/dokuwiki/doku.ph … x_speakjet
As well as this Arduino shield:
http://www.ginsingsound.com/
yogi