A sound card mic I use for data collection of source code, the use of VC to prepare, together with a virtual oscilloscope, you can display real-time waveform.

Packet : 23825746signal_acquisition_based_on_soundbard.rar filelist
RECORD
RECORD\data.txt
RECORD\DDCMATH.H
RECORD\Fftdom.cpp
RECORD\Fftmisc.cpp
RECORD\FOURIER.H
RECORD\Fourierd.cpp
RECORD\Fourierf.cpp
RECORD\Noname.wav
RECORD\Noname.wav.dat
RECORD\README.TXT
RECORD\Record.aps
RECORD\Record.clw
RECORD\Record.cpp
RECORD\Record.dsp
RECORD\Record.dsw
RECORD\RECORD.H
RECORD\Record.ncb
RECORD\Record.opt
RECORD\RECORD.PLG
RECORD\Record.rc
RECORD\RecordDlg.CPP
RECORD\Recorddlg.h
RECORD\RES
RECORD\RES\RECORD.ICO
RECORD\RES\RECORD.RC2
RECORD\resource.h
RECORD\Scope.cpp
RECORD\Scope.h
RECORD\STDAFX.CPP
RECORD\STDAFX.H
RECORD\Title.bmp
RECORD\Track.bmp
RECORD\Wavefile.cpp
RECORD\Wavefile.h

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