mulligan@coral.bucknell.edu (05/24/91)
Before I go on, I'd like to thank all of the kind people wo responded to my questions on some speech chips. THANK YOU! This is a summary of what I got: CTS265A-AL2 is part#21144 at Active Components SP0256A-AL2 is part#21142 Prices are $21.35, and $11.70 Active Components U.S.A. 1-800-677-8899 (BTW, the prices might be in Canadian dollars) The first chip is the text-to-speech converter, and the second is the speech synth. chip. They were made by General Instruments, but now are made by MicroChip Technoly. Some distributors are wyle, Hamilton/Avnet, Schweber. egul@hp-lsd.cos.hp.com (Ed Gulczynski) has two SPO256 for $12 each, but recommends that we look for the company and buy direct. Please don't bug this guy, he did me a favor by responding. I get the feeling that the voice quality isn't really great. The TI chip, the 53C50 (?) is supposed to be less flexible, but give better voice. Also, using a 3.57 MHz x-tal instead of the 3.12 could give better (higher pitched) voice. It will run on a 3.27, but at reduced quality. Active should have the x-tals, too. A few years ago (3 or 4 ?) an electronics mag, possibly Modern Electronics, ran a schematic for a unit thaspoke anything that went over an RS232 line. I wanted to add this to my DEC VT100 terminal, just to annoy my friends. Thanks again to all who replied! Ed Mulligan E.E. student at Bucknell University (I'm a senior now!)