Apple ][ Speech Card using the GI SP0256A-AL2 Speech Processor Chip
This is a speech card that I designed and built for the Apple ][ computer in 1988. It uses the GI SP0256A-AL2 Speech Processor chip that was sold in RadioShack stores. I used this Apple ][ card to develop the speech for a talking doorbell project, that I designed and built using the same speech chip, and the Intel i8741 microcontroller. This talking doorbell was never made into a product, but that is still something I might do in the future... who knows lol.
I hope the information here preserves the memories of the alien sounding speech technology that was available to hobbyists at RadioShack stores.
I retain all rights to the Talking Doorbell, otherwise have fun. If you want to make some cool alien talking doorbells to sell, please contact me. If you wish to make and sell copies of the sound card for profit, please contact me. Otherwise, please enjoy and have fun!
All BASIC programs are covered under the MIT license here.
Microchip, Inc. holds the copyrights and intellectual property rights to the SP0256-AL2 design.
The Talking Doorbell is Copyright 1988 Patrick Montelo, All Rights Reserved.
All the information you need to build the sound card is in the images folder. Please see the schematic
