Solid State Speech Synthesizer
The TI-99/4A Solid State SpeechTM Synthesizer (Model PHP 1500) is a peripheral add-on for the home computer system that added speech ability to some programs and games for the computer. Some of the popular titles that added speech content when the Speech Synthesizer was connected include Alpiner, Microsurgeon, and Parsec. The speech synthesizer could be purchased separately at first, and later on, was available as a free addition with some software titles that could utilize it, or in packages including the TI-99/4A and other software.
 TI-99/4A Solit State SpeechTM Synthesizer |
Summary
The TI-99/4 and TI-99/4A Solid State SpeechTM Synthesizer plugged into the side-car position on the right-hand side of either computer. The speech synthesizer contained a specific vocabulary. The speech synthesizer always had to be plugged into the side-car position even if using a peripheral expansion box (PEB). If other peripherals were used, the speech synthesizer always had to be the first peripheral, plugged in, closest to the computer, to work properly.
Initially, Texas Instruments (TI) intended to sell add on vocabulary cartridges that plugged directly into the speech synthesizer into the lifting door on the front of the unit. However; it was quickly realized that vocabulary expansion was easily achieved in software, therefore; the expansion cards were quickly disbanded and never developed or sold for the speech synthesizer. The speech synthesizer was one of the most purchased and available add-on modules around for the TI-99/4 - TI-99/4A system as it was given away near the end of the computer's life with software titles.
