Commodore Magic Voice Speech Module:

“Magic Voice” is an expansion cartridge for the Commodore 64 that can speak 235 predefined words.

Magic Voice does not combine words from phonemes, but contains 235 prerecorded words in a 16 KB ROM. It was meant to be used with tape, disk or cartridge based software that made use of the extension, but few titles were released.

Without any extra software, the speech features are accessible through added BASIC commands.

Commodore Expander FM Sound Module:

The Commodore Sound Expander or SFX Sound Expander is a sound synthesizer cartridge with 9 voices for the Commodore 64.

It was developed by Richard Watts. The synthesizer chip is a Yamaha YM3526 OPL, which can upgraded by a YM3812 OPL2 chip, which is also used by AdLib- and Soundblaster sound cards in PCs.

This cartridge was produced by Music Sales Limited in the UK and marketed as “Commodore SFX series” by Commodore world-wide.

Gallery:

source: pagetable.com – c64-wiki.com