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Using Microphone Arrays with C6713 DSK

Bebo
Prodigy 20 points

Hello,

I am interested in creating a sound localization system based on the C6713 DSK.

I am confused as to how to interface a microphone array with the DSK... and realistically, what is the maximum number of mics I can use? With or with out additional hardware (which hardware would be needed?)

  • Intellectual 310 points

    Educational DSP (http://www.educationaldsp.com) has daughtercards which support up to 16 inputs (with mic preamp) and outputs.

    I've never worked with them. But I hope that I will get my DSK_AUDIO4 tomorrow :)

    Robert

  • TI__Mastermind 18130 points

    I'm assuming you are talking about capturing 16 channels of audio through either TDM or simultaneously with multiple serializers? The McBSP can be configured to capture 16 channels with 1 serializer through Time-Division Multiplexing or the McASP can be used for multiple channel simultaneously. The DSK is not built to do this, but as the other poster mentioned you could accomplish this with external/third-party hardware.

  • in reply to TimHarron
    Prodigy 20 points

    Yes, precisly what I need to do. We settled for 4 inputs due to cost issues... with the possbility of expansion in the future.

    Now I wonder how easy is it to use the AUDIO4 daughtercard? I've had BAD experience trying to make various components communicate with a TI MSP 430. This is slightly different, but I'm scared for life.

  • in reply to Bebo
    TI__Mastermind 18130 points

    Bebo said:
    Now I wonder how easy is it to use the AUDIO4 daughtercard? I've had BAD experience trying to make various components communicate with a TI MSP 430. This is slightly different, but I'm scared for life.

    I'm not sure how much I will be able to help with this part. I'm not familiar with the AUDIO4 daughter card so I don't know any of the quirks that go along with it. I would imagine all the necessary software comes with the kit, but without having used this card before I cannot say for sure.

  • in reply to TimHarron
    Prodigy 70 points

    Hi there,

    I am using AUDIO4 daughter card, and all it does is get the line in and mic in data and send it to line out pls. can anyone help me with its programming

    my basic aim is to get data using these four channel and store it in memory...

    Rabya

  • in reply to Rabya B.K. Hoti
    Prodigy 175 points

    hi,

           refer to dsk6713 tech ref. also you can initialize mic-in through AIC23 codec and end data's using mcbsp. also check with TLV320cAIC23 datasheet.

    regards,

    chinny

  • in reply to TimHarron
    Prodigy 80 points

    I am planning to design a microphone array kit and connect it to a c6713 dsk through McASP1 interface.

    The McASP1 will be configurated to operate in I2S mode.

    My problem is: Can I create a custom Simlink block for the microphone array kit  mentioned above if I want to do simulation througn Simlink?