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zedboard audio processing


hello how to give external input of recorded voice(be it like a songs or something else but should be recorded one) to zedboard to the xadc auxiliary pins for performing FFT on it do let me know.Previously my task was to give sine wave input to the xadc header through the frequency and signal generator and perform the FFT on it to generate the spectrum of sine wave below has the attachment of generating a sine wave spectrum on zedboard now instead of sine wave i should give some recorded voice as input to the xadc header .I  could not find what could be an instrument and the type of cables and wires to give external input to xadc header to perform FFT on it do let me know please.


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