Frequency Analyzer: There is a white vertical line moving from left to right. It leaves behind a colorful trace. The colors correspond to the intensities of various components of the sound. For instance, if you whistle into the microphone a pure sine wave of the frequency 1 kHz (you can easily learn to do it using the feedback from the Frequency Analyzer), the Fourier transform will have a sharp peak at 1 kHz. You ll see the program draw a thin line, probably red or yellow, depending on the volume, at the height corresponding to 1 kHz. If you lower the pitch of your whistle, the line will move downwards.

FreqAnalyzer\active.cpp
............\active.h
............\Canvas.h
............\Complex.h
............\const.h
............\Control.cpp
............\control.h
............\controls.cpp
............\Controls.h
............\Display.cpp
............\Display.h
............\fft.aps
............\Fft.cpp
............\Fft.h
............\fft.ico
............\fft.rc
............\Freq.dsp
............\Main.cpp
............\main.h
............\metactrl.h
............\params.h
............\readme.txt
............\Recorder.cpp
............\Recorder.h
............\resource.h
............\rs.bmp
............\rs.ico
............\SmartPtrs.cpp
............\smartptrs.h
............\thread.h
............\view.h
............\Views.cpp
............\Views.h
............\wassert.h
............\Wavein.h
............\winex.h
............\xptr.h
FreqAnalyzer

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