The Fast Fourier Transform (FFT) allows us ers spectrum to view the content of an audio sign al. The FFT code presented here was written by Do n Cross though his homepage appears to have subs equently been taken down. Rather than explain t he mathematical theory of the FFT. I will attempt to explain its usefulness as it re Lates to audio signals

Packet : 41695066fft of wavein audio signals.zip filelist
Fourier.cpp
Fourier.h
MemoryDC.h
ReadMe.txt
Recorder.cpp
Recorder.h
resource.h
res/waveInFFT.ico
res/waveInFFT.rc2
SpectrumGraph.cpp
SpectrumGraph.h
StdAfx.cpp
StdAfx.h
waveInFFT.cpp
waveInFFT.dsp
waveInFFT.dsw
waveInFFT.h
waveInFFT.rc
waveInFFTDlg.cpp
waveInFFTDlg.h

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