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Text to speech in Ubuntu and C/C++ to read text strings with voice

Posted on 2012-03-10
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I'm developing a mobile robot application and i'd like to add a text to speech function which let the robot "talk" with the humans by reading some text strings which i'll pass to it.

For example, since my robot has a sonar network, i'd like to let it signal an obstacle presence by diretcly speacking with the human operator.

Something like:

if(sonar_front_detect == ok){

speak_to_human("I found an object in front of me);

}

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Is there any simple open-source library which i can use to accomplish this task?
I'm looking for something which is very easy to use because i am not an expert programmer; it would be fine to use a library which has a function which takes as parameter the string which the robot has to read.

I hope to find a solution to my problem.

Thanks to all!
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Question by:ichigokurosaki
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alexey_gusev earned 2000 total points
ID: 37706328
have you checked espeak?

https://help.ubuntu.com/community/TextToSpeech ?
http://www.thegeekstuff.com/2010/03/espeak-speech-synthesizer-for-ubuntu/

I didn't use it personally, but from the look of it it serves your needs.

Besides, there is Festival (http://www.cstr.ed.ac.uk/projects/festival/)
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Author Comment

by:ichigokurosaki
ID: 37706604
I tried espeak and Festival and they work very well from the terminal.

Now, i'd like to include this functionality in my C program but i'd like to avoid to use system() to call an external program; i think i can't include espeak library in my C program, so i think i have to use Festival but i found no example on how to use it in C/C++ application.

Can you help me, please?
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Author Comment

by:ichigokurosaki
ID: 37706630
Ok, i was able to solve my problem: i've found the API reference for festival :)

Thanks a lot!
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Author Closing Comment

by:ichigokurosaki
ID: 37706631
Thanks for the tip!
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