USB Soundblaster device doesn't record

Bill Paul wpaul at FreeBSD.ORG
Mon Jul 22 21:05:00 UTC 2013


> 
> Hi,
> 
> 
> > It is extremely difficult for me to rebuild the world on the tablet. The
> > best I can do is try a snapshot, and I can't do that today.
> 
> You only need the kernel, no world. BTW: Have you checked mixer volume 
> levels and have you set the recording source correctly?
> 
> --HPS
> 
> 

Yes, I checked the mixer. It reports pcm and rec settings, which both
default to 45. I cranked the rec setting up to 100, but still got nothing
but silence.

Also, as a very crude test, doing cat /dev/dspX (where X is the
corresponding pcm unit number) yields only the same value over and over,
though on 7.2 I can see different values being read when the mic picks
up sound.

-Bill

--
=============================================================================
-Bill Paul            (510) 749-2329 | Senior Member of Technical Staff,
                 wpaul at windriver.com | Master of Unix-Fu - Wind River Systems
=============================================================================
   "I put a dollar in a change machine. Nothing changed." - George Carlin
=============================================================================


More information about the freebsd-usb mailing list