18h 16min, jan 9, 1978 y - Speak & Spell
Description:
TI’s Speak & Spell
Texas Instruments Inc. introduces Speak & Spell, a talking learning aid for children aged 7 and up. Its debut marked the first electronic duplication of the human vocal tract on a single integrated circuit. Speak & Spell used linear predictive coding to formulate a mathematical model of the human vocal tract and predict a speech sample based on previous input. It transformed digital information processed through a filter into synthetic speech and could store more than 100 seconds of linguistic sounds.
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02 -Innovations in computer science
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