[mythtv-users] pcHDTV 5500 analog audio port

Dan skyhigh at rldb.net
Thu Sep 25 16:09:55 UTC 2008


Hi all,
I replaced 2 failing PVR150's with two pcHDTV 5500's.  They are 
connected to directv boxes.  I get video just fine but like many other 
cannot get audio to work.  I have tried everything I have found, loading 
the cx88-alsa, patching cx88-alsa, setting index so they don't bump my 
sound card, setting dvb_shutdown_timeout.  In fact, everything seems to 
be in order, just the dsp1/2 do not work:

I have the audio port:
05:07.1 Multimedia controller: Conexant CX23880/1/2/3 PCI Video and 
Audio Decoder [Audio Port] (rev 05)

Alsa sees it:
1 [CX8801         ]: CX88x - Conexant CX8801
                      Conexant CX8801 at 0xfc000000

/dev/dsp1 is created:
crw-rw---- 1 root audio 14, 19 Sep 25 11:46 /dev/dsp1

But when I go to use it I get errors:
sox -t ossdsp -w -c2 -r 48000 /dev/dsp1 -t ossdsp ./test.wav
sox: Failed reading /dev/dsp1: Unable to set the sample size to 16

cat /dev/dsp1
cat: /dev/dsp1: Invalid argument

Thanks for any thoughts,

Dan


The sound card on the system is working fine, I can playback old shows 
just fine.


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