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All audio frequencies

How can I get (is it possible?) All audio frequencies are now played on the system to record some audio visualizer? Is there a C ++ or C # library? thanks in advance

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Basic steps:



  • apply window function to sample block (e.g. 1024 sample, Hanning window)
  • perform realistically complex FFT on windowed samples
  • take the value of each FFT output tray ( sqrt(re * re + im * im)

    )
  • identify peaks in the resulting power spectrum estimate
  • the bin index of each peak corresponds to the frequency of this component
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I'm not sure, but I think you can use FMOD for this. Specifically, Get a spectrum .



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