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Old 04-08-2009, 03:44 PM   #1
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Registered: Apr 2009
Distribution: Montavista Mobilinux
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alsa libary injecting an echo when using small period size


When attempting to capture audio with a small period time such as 22.5ms, a terrible echo is captured into the created .wav file. If I use a larger period time such as 90ms, the echo is not there. In between times have an echo but not to the extent as the 22.5ms.

I have verified that side tone is turned off and can easily duplicate this using "arecord -c 1 -r 8000 -f S16_LE --period-size 180 -d 5 test.wav"


Last edited by p56387; 04-08-2009 at 03:45 PM.


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