Text to speech synthesis Answer

VEX V5 General Discussion General Forum
#1

Response to this
https://vexforum.com/t/text-to-speech-synthesis/26449/1

I am almost certain I am who you are referring to. :slight_smile:

I have used text to speech for autonomous selection. https://www.youtube.com/watch?v=V8S0WiqEK6s

I have also used it for something way cooler here.
https://www.youtube.com/watch?v=gLeuESGlXmM

So the how.

  1. The AT&T text to speech site can be found here.
    http://www2.research.att.com/~ttsweb/tts/demo.php

  2. Convert the Wav file into the proper format using audacity as explained on the VEX speaker page here. [http://www.robotc.net/wiki/Tutorials/VEX_Speaker_module

  3. Upload it to the robot](http://www.robotc.net/wiki/Tutorials/VEX_Speaker_module)

#2

What we really would like is text to speech at run time rather than offline.

task main()
{
    Speak("Hello");

    while(1)
        wait1Msec(10);
}

I have looked for libraries to implement this but have found nothing compatible with a cortex-M3 (processor in the cortex). There are some available for the cortex-M4, the difference being that it has a floating point co-processor. I had wanted to add this feature to ConVEX.

Flowol has something built in, but it also creates a wav file I think, never actually played with it. (author of Flowol was former Microsoft text to speech expert, or at least something in that area).

#3

I’m Kinda gonna derail this thread, How much work do you think it would be to replace the M3 with the M4, I would assume that firmware would be the biggest issue, if the microprocessor follows is the same size.

#4

Couldn’t let me have the glory could you Jpearman. On my birthday no less.

#5 
task main()
{
    speakingVoice = "singing";

    Speak("Happy birthday to you");
    Speak("Happy birthday to you");
    Speak("Happy birthday dear Griffin");
    Speak("Happy birthday to you");

    while(1)
        wait1Msec(10);
}
#6