Text to Speech chip for SpeakJet - TTS256 View larger

Text to Speech chip for SpeakJet - TTS256

SFE COM-09811

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Rs. 2,392.59 tax incl.

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The TTS256 is an 8-bit microprocessor programmed with letter-to-sound rules. This built-in algorithm allows for the automatic real-time translation of English ASCII characters into allophone addresses compatible with the Magnevation SpeakJet Speech Synthesizer IC. Combine this with the SpeakJet to build a complete text-to-speech solution.

The TTS256 is offered in a through-hole, 28-pin package. Supplied power should be +5V. Very few connections are required for operation:

Pin#TTS256Pin#SpeakJet
5TX (sends serial data to host)  
14Vss (ground)  
18RX (received serial data from host)15Buffer Half Full
20Ready10RX
24SJ_TX  
28Vdd (+5V)  


The TTS256  contains over 600 rules for pronouncing English text. While it does a pretty good job of the task, with a less than 5% error rate in most sentences, it will mispronounce some words.   Often times, some creative spelling will help.

Features:

  • Narrow 28-pin DIP
  • Companion chip to Magnevation SpeakJet and Savage Innovations SpeakGin
  • Built in 600 Rule database
  • 9600bps (8-N-1) serial interface (non-inverted TTL level)
  • Generates speech codes from ASCII text
  • Compatible with Arduino, Basic Stamp, OOPic, Pic, and any processor with serial output

Documents:

  • Datasheet (note: The correct character to append to the end of text is 0x0D and not 0x0A as listed)
  • Tutorial (Adding the TTS256 to the SparkFun VoiceBox Shield)

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Text to Speech chip for SpeakJet - TTS256

Text to Speech chip for SpeakJet - TTS256