TMS5220
The TMS5220 is a speech synthesizer chip created by Texas Instruments in 1979. It works through Linear-Predictive Coding, a compression system that can reduce raw speech data to a small amount of data. It was created for the Speak and Spell, when the designers realized speech would help it teach children better than just a display. The problem was that memory was quite expensive, so not much memory could be used for speech, since it still had to have the word data. The TMS5220 was also used in the 4th generation Bally pinball tables as the Squawk and Talk speech board, part number AS-2518-61, and in several Atari arcade games.
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