Developed during 1979 and marketed beginning in 1980, the Votrax SC-01A speech synthesizer chip was the first phoneme-based language chip available for consumer-grade applications.
It is capable of unlimited English speech using a stream of phoneme codes as input. All transitions between phonemes are handled automatically.
You can here a preview of the Votrax in action below.
Nice Video…. Do you know where I can find a SC-01? Its very hard to find one to buy on internet.