Synthesis is still performed by a custom IC, but now it’s using the more common Epson S1V30120 text-to-speech chip. The Talker/80 also has an ATmega644, which connects to the TRS-80’s ...

Those of us who were around in the late 70s and into the 80s might remember the Speak & Spell, a children’s toy with a remarkable text-to-speech synthesizer. While it sounds dated by today’s ...