[mythtv-users] Re: btaudio question

Joseph A. Caputo jcaputo1 at comcast.net
Mon Nov 24 13:13:23 EST 2003


On Monday 24 November 2003 12:42, RJV wrote:
> Here is the output from dmesg
>
> msp34xx: init: chip=MSP3430G-A1, has NICAM support
> msp3410: daemon started
>
> btaudio: driver version 0.7 loaded [digital+analog]
> btaudio: Bt878 (rev 2) at 00:0b.1, irq: 17, latency: 32, mmio:
> 0xe3000000 btaudio: using card config "default"
> btaudio: registered device dsp2 [digital]
> btaudio: registered device dsp3 [analog]
> btaudio: registered device mixer1
>
>
> and lspci
>
> 00:0b.0 Multimedia video controller: Brooktree Corporation Bt878
> Video Capture (rev 02)
> 00:0b.1 Multimedia controller: Brooktree Corporation Bt878 Audio
> Capture (rev 02)
>
>
> If I try to pipe sound from /dev/dsp2 to /dev/dsp using "sox -c 1 -w
> -r 44100 -t ossdsp /dev/dsp2 -t ossdsp /dev/dsp" I get no sound.  If
> I use this command "sox -c 1 -w -r 44100 -t ossdsp /dev/dsp -t ossdsp
> /dev/dsp" I get double sound, and I can mute one using kmix. 
> However, if I unplug the patch cable, I get no sound.  I'm thinking
> the card doesn't support btaudio...

Did you try dsp3 (the analog device)?  Some cards support btaudio only 
on the analog device.  Also, you should now have a mixer device (/dev/
mixer1) for your btaudio card... check to make sure you've got the 
capture volume on it turned up!

Other that that, it is possible that btaudio doesn't work with that 
card.  Hopefully someone else with a WinTV-GO will chime in here...

-JAC



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