Vic-20 speech synthesis system by S.T. Currah 22/10/82

From: Marko Mäkelä (
Date: 2003-09-27 17:11:13

Hi all!

Today I fixed a VIC-20 (broken 7406 on the serial bus) and got an Amiga mouse,
a Commodore mouse and a Vic-20 speech synthesis cartridge in return.

The cartridge contains an audio circuit, some logic glue and two ROM-looking
chips.  The program ROM is 2 kilobytes, and it hooks itself presumably to
the GETIN vector, saying the names of letters and some keys (home, return,
cursor, equals, multiply, pound, etc.) as they are typed.

Does anyone know anything about this cartridge?  The cover says "Adman
Electronics, Made in England, Speech Synthesiser".  The cartridge also
hooks to the audio/video connector via a pass-through cable.

The speech quality is slightly better than S.A.M. 64.  Speaking of speech,
the most recent pwp production (Robotic Liberation) features pretty
understandable speech (or singing) on the unexpanded PAL VIC-20.


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