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Audiorecorder in Matlab.....

Audiorecorder in Matlab.....  
P L U M !
 Re: Audiorecorder in Matlab.....  
robert bristow-johnson
 Re: Audiorecorder in Matlab.....  
P L U M !
 Re: Audiorecorder in Matlab.....  
Yu SONG
From:P L U M !
Subject:Audiorecorder in Matlab.....
Date:16 Jan 2005 05:35:12 -0800
Hi,
I tried to record an audio signal by speaking into a microphone using
the audiorecorder object in Matlab 6.5.
But the output was absolutely illegible,and was noisy.
I tried the same thing with Microsoft Sound recorder and the signal was
clear.
Do I need to do some conditioning before using the audiorecorder
object's output????
From:robert bristow-johnson
Subject:Re: Audiorecorder in Matlab.....
Date:Sun, 16 Jan 2005 12:48:26 -0500
in article 1105882512.577622.179600@c13g2000cwb.googlegroups.com, P L U M !
at karthik.ravikanti@gmail.com wrote on 01/16/2005 08:35:

> I tried to record an audio signal by speaking into a microphone using
> the audiorecorder object in Matlab 6.5.
> But the output was absolutely illegible,and was noisy.
> I tried the same thing with Microsoft Sound recorder and the signal was
> clear.
> Do I need to do some conditioning before using the audiorecorder
> object's output????

dunno MATLAB v 6.5, but you should be able to open your recorded .wav files
with MATLAB, but that might be an additional inconvenient step.

--

r b-j rbj@audioimagination.com

"Imagination is more important than knowledge."
From:P L U M !
Subject:Re: Audiorecorder in Matlab.....
Date:16 Jan 2005 20:12:10 -0800
yeah, i could open the recorded wav file using wavread().....but cant I
record a clear audio signal directly into Matlab?
From:Yu SONG
Subject:Re: Audiorecorder in Matlab.....
Date:Mon, 17 Jan 2005 11:35:33 +0000
P L U M ! wrote:
> Hi,
> I tried to record an audio signal by speaking into a microphone using
> the audiorecorder object in Matlab 6.5.
> But the output was absolutely illegible,and was noisy.
> I tried the same thing with Microsoft Sound recorder and the signal was
> clear.
> Do I need to do some conditioning before using the audiorecorder
> object's output????
>

Presuming you used same parameters (Fs, NBITS, NCHANS),
I guess it may be caused by the recording volume.

--
Song

/* E-mail.c */
#define User "Yu.Song"
#define At '@'
#define Warwick "warwick.ac.uk"
int main() {
printf("Yu Song's E-mail: %s%c%s", User, At, Warwick);
return 0;}

Further Info. : http://www.dcs.warwick.ac.uk/~esubbn/
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