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Voice synthesizer chip

  1. Feb 1, 2010 #1
    I am currently doing my solar charger with storage level indication through 7segment and an output voice of storage level. I am currently facing problem in the sound synthesizer circuit where i need to find the suitable chip for my project.

    I have read up some chip such as AD74111, AD7880, AD7868 and BU6922KV. All these chip are not suitable to be used and i have out of resource to find the chip. Is there any other options that i can go on?

    I need to find a way to pronounce the sound correctly using any chip that available.
     
  2. jcsd
  3. Feb 1, 2010 #2

    berkeman

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    Staff: Mentor

    How many words do you need to produce? Do you already have a uC as part of the circuit?
     
  4. Feb 4, 2010 #3
    Hi berkeman,

    I need to produce sound like for example 80% full as i am doing charging. I am currently looking at one microcontroller which is Magnevation SpeakJet. Still searching for other options.

    Do u have any ICs in mind that can do that?Actually i am not allowed to use pre-record Speech Synthesizer. I am using PIC to be the one doing work, sending data.

    Regards,
    zyho
     
  5. Feb 4, 2010 #4

    berkeman

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    Staff: Mentor

    You're not allowed to use pre-recorded speech? Weird. How are you supposed to "synthesize" speech?
     
  6. Feb 4, 2010 #5
    As i know, there are some ICs that have sounds producing by either Hex code or maybe other binary code. Maybe by combining simple sound to found a word. Something like the world 'good', it might need two sound from the IC so that it can form the 'good' word. just simple 'la' pronounce or other simple sound. I am not good in explain, do u understand what i am trying to express?haha.

    For the project, i will have a 7 segment display of the storage level of my solar charger. then there will be a PIC taking the data to send in the synthesize IC to produce the sounds that i need for my project.

    Regards,
    Zhao Yong
     
  7. Feb 4, 2010 #6

    berkeman

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    Staff: Mentor

    Interesting. Maybe they synthesize them on the fly using phonemes?

    http://en.wikipedia.org/wiki/Phoneme

    I'm familiar with using phonemes in voice recognition, but hadn't considered that they might be useful in voice synthesis as well. Sounds like a fun project!
     
  8. Feb 4, 2010 #7
    hi berkeman,

    Yea yea. that's the word phoneme. I am actually enjoying doing this project! haha! Just that having difficulty to find ICs can actually do the job that i wanted to.

    Any ICs in ur mind? Thanks a lot!

    Regards,
    zyho
     
  9. Feb 5, 2010 #8

    dlgoff

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    Science Advisor
    Gold Member

    This really brings back some memories. One of the first kits I put together was a free one from Bell Labs back in the early '60s. It used caps and inductors to produce the vowels that you could string together to "simulate" words (very crude). Here a link to see what they looked like:
    http://www.porticus.org/bell/belllabs_kits_ss.html
     
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