Electronic voice alert ( EVA ) was an option available on many Chrysler K-car -based vehicles in the mid-1980s.
7-626: Chrysler and Dodge used technology of the Texas Instruments LPC Speech Chips , that were also used in the Speak & Spell toy. The EVA would automatically lower the radio volume and deliver eleven different spoken warning messages to drivers using a speech synthesizer in 24 certain models. A similar system was used in 1984 to 1986 Nissan 300ZX , Nissan 200SX , and the Nissan Maxima GL and GLE models. The messages are played from
14-425: A digital instrument cluster and considered the height of technology at the time, many drivers grew weary of the system constantly admonishing them to fasten their seatbelts and turned it off via removing a fuse, which sometimes deactivates the fuel gauge . Later models had the option to be turned off via a switch in the glovebox. Texas Instruments LPC Speech Chips The Texas Instruments LPC Speech Chips are
21-596: A miniature phonograph record , similar as used in speaking dolls . The EVA was available on the Chrysler LeBaron (and the optional Mark Cross Edition), Chrysler Town and Country Wagon , Chrysler Fifth Avenue , Chrysler New Yorker , Chrysler Laser , Dodge Daytona , and Dodge 600 between 1983 and 1988. Models sold in Canada accommodated both English and French. Models sold in Mexico spoke Spanish. Generally paired with
28-618: A series of speech synthesizer digital signal processor integrated circuits created by Texas Instruments beginning in 1978. They continued to be developed and marketed for many years, though the speech department moved around several times within TI until finally dissolving in late 2001. The rights to the speech-specific subset of the MSP line, the last remaining line of TI speech products as of 2001, were sold to Sensory, Inc. in October 2001. Speech data
35-524: A special TI-specific format. Chips in the TI LPC speech series were labeled as TMCxxxx or CDxxxx when used by TI's consumer product division, or labeled as TMS5xxx (later TSP5xxx) when sold to 3rd parties. The companion devices to all versions of the speech chip were the custom 4-bit-interfaced 128Kbit (16KiB) TMS6100 NL (AKA TMC0350) and 32Kbit (4KiB) TMS6125 NL (a.k.a. TMC0355 a.k.a. TMS7125) read-only memories which were mask programmed with words required for
42-469: Is stored through pitch-excited linear predictive coding (PE-LPC), where words are created by a lattice filter , selectably fed by either an excitation ROM (containing a glottal pulse waveform) or an LFSR ( linear-feedback shift register ) noise generator. Linear predictive coding achieves a vast reduction in data volume needed to recreate intelligible speech data. The TMC0280/TMS5100 was the first self-contained LPC speech synthesizer IC ever made. It
49-515: Was designed for Texas Instruments by Larry Brantingham, Paul S. Breedlove, Richard H. Wiggins, and Gene A. Frantz and its silicon was laid out by Larry Brantingham. The chip was designed for the 'Spelling Bee' project at TI , which later became the Speak & Spell . A speech-less 'Spelling B' was released at the same time as the Speak & Spell . All TI LPC speech chips until the TSP50cxx series used PMOS architecture, and LPC-10 encoding in
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