DSPLIB Web Site - General Instruments Speech Synthesizer Chips

General Instruments Speech Synthesizer Chips

The GI SP0250 and SP0256 series speech chips were used for the first wave of commercial voice synthesizers in the late 70's and early 80's. In an application, they allow speech data to be stored in a highly compressed format, which was very important in the days when ROM space was expensive. They synthesize speech using a method know as Linear-Predictive Coding (LPC).

Thanks to Mark Magness, the following documents are now available from this site:

SP0250 Data Sheet (zipped PDF)

SP0250 Applications Manual (zipped PDF)

SP0256b Data Sheet (zipped PDF)

SPR016 2Kx8 Serial ROM Data Sheet (zipped PDF)

SPR032 4Kx8 Serial ROM Data Sheet (zipped PDF)

SPR128 8Kx8 Serial ROM Data Sheet (zipped PDF)

Some products which used a GI SP0250 or SP0256:

Arcade Games:
    All Sega G80 Series Games, including...
        Space Fury
        Star Trek
        Zektor
        Eliminator
        Astro Blaster

Home Systems:
    Intellivision Intellivoice Module
    "The Voice" module for the Magnavox Odyssey2

I am currently working on simulators for these chips. Information and samples will appear here, as well as here

www.dsplib.com ......Resources and tech stuff from Frank Palazzolo