Subject: Recording silence is definitely not golden
To: None <>
From: D'Arcy J.M. Cain <>
List: current-users
Date: 11/22/2005 12:15:55
It seems that NetBSD does not do audio recording.  There are all sorts
of tools to do so but when I use them all I record is silence.  I found
a few messages in the archives from people with the same problem but no

Please, if anyone is actually recording on a current NetBSD box, please
send me;

 - your dmesg output
 - your "mixerctl -a" output
 - your "audioctl -a" output
 - what commands you use to record

Basically I have this:

auvia0 at pci0 dev 17 function 5: VIA Technologies VT8237 AC'97 Audio
(rev 0x60) auvia0: interrupting at irq 11
auvia0: ac97: Avance Logic ALC658 codec; 20 bit DAC, 18 bit ADC, no 3D
stereo auvia0: ac97: ext id 9c7<AC97_23,LDAC,SDAC,CDAC,SPDIF,DRA,VRA>
audio0 at auvia0: full duplex, mmap, independent

I have tried a number of tools including this command:

audiorecord -F wav -p line -v 128 test.wav

The file I get is complete silence.  I don't get any errors and the
longer I let it run the longer my file gets but no sound whatsoever.  I
am now searching for outlandish ideas to try.


D'Arcy J.M. Cain <>