[mythtv-users] Re:btaudio works under sox but not MythTV

[Brian Lalor]

Joseph A. Caputo wrote:

> The problem might be your (output) sound card.  You may very well be
> recording at 32000 Hz, but your sound card may not be able to *play* 32000
> Hz, so everything gets played at 44100 or 48000 Hz.  Do you have another
> sound card or another computer you can try playing your recordings on?

I just tackled a similar problem this weekend.  My on-board audio device (via 
82xx) only seems to be able to handle 44.1k and 48k.  When playing back audio 
recorded at 32k, the result from my receiver was at normal speed but just 
"bad" somehow (dirty with odd bits of high noise).

Playing the output from the btaudio device (/dev/dsp1) to my alsa device 
connected to my receiver (/dev/adsp0) with sox sounded just fine if I told sox 
to resample the data it was sending to the alsa device to 44.1k or 48k:
	sox -w -r 32000 -t ossdsp /dev/dsp1 -r 44100 -t ossdsp /dev/adsp0

So, if Myth had the ability to set the sampling rate of the source device 
*and* the rate at which to record the data at, then I'd be able to use the 
btaudio device.  As it is, I'm capturing via line-in on my sound card.

-- 
    __   ____
   / /  / __/ Brian Lalor
  / _ \/__ \  blalor at bravo5.org
/_.__/____/  http://bravo5.org/