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elkimhoc
Joined: 24 Apr 2004
Posts: 106
Helped: 2
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 08 Sep 2008 22:07 sound card as analog to digital converter |
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Hi all,
I want to use a computer's sound card as analog-to-digital converter, presenting a real-time waveform or spectrum of the signal - which can be music, speech, or output from an electronic circuit.
Did anyone know a good PC program for data acquisition using the sound card? (vb , c++, matlab etc....)
thanks
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08 Sep 2008 22:07 Ads |
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xulfee
Joined: 27 May 2008
Posts: 434
Helped: 32
Location: Pakistan
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09 Sep 2008 4:27 analog to digital conversion using sound card |
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| for data acquisitioning labview is used
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eng_shady00
Joined: 09 Jun 2008
Posts: 57
Helped: 3
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18 Jan 2009 1:58 sound card analog to digital converter |
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| elkimhoc wrote: |
Hi all,
I want to use a computer's sound card as analog-to-digital converter, presenting a real-time waveform or spectrum of the signal - which can be music, speech, or output from an electronic circuit.
Did anyone know a good PC program for data acquisition using the sound card? (vb , c++, matlab etc....)
thanks |
VB can work
but matlab is usualy the best in processing signals
a=wavrecord(N,Fs,Ch)
this comand records and samples the input signal from the mic input as follows:
N: number of samples, it equals s*Fs where s is period of recording in seconds
Fs: sampling frequency
ch: number of input channels< mono or stereo
u can playback the recorded samples as follows:
wavplay(a,Fs)
hope that's useful
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