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Text to Speech chip for SpeakJet - TTS256

21.87 €21.87

Availability: Retired

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:

Description

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#     TTS256     Pin#     SpeakJet  
5 TX (sends serial data to host)    
14 Vss (ground)    
18 RX (received serial data from host) 15 Buffer Half Full
20 Ready 10 RX
24 SJ_TX    
28 Vdd (+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)

If you are interested in Internet of Things (IoT) or M2M projects check our open source sensor platform Waspmote which counts with more than 100 sensors available to use 'off the shelf', a complete API with hundreds of ready to use codes and a low consumption mode of just 0.7µA to ensure years of battery life.

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