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Text to Speech

We have been playing with text to speech again. We used a Sparkfun voice box shield that includes the popular SpeakJet chip. The issue is that you have to code “phonetic” allophones to tell it what to say. It won’t read the contents of a normal variable and convert it to recognizable speech. So we added a TTS256 chip, which takes English text and numbers from variables, and builds the correct allophones for the SpeakJet.

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User manuals and working sketch are at

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nehal soni
6 years ago

any program for arduino for text to speech

Steve Spence
6 years ago

See the link in the article for program code.

Aiman Aariz
5 years ago

where is the code? i already click on link but not available

Steve Spence
5 years ago

I just checked the link, it's working fine. You have to log into the yahoo group …

Steve Spence
5 years ago

It looks like sparkfun no longer sells the shield, but I have included the schematics on the group link.


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