[mythtv-users] alsa9:spdif

[Gerald Schepens]

Scratch all that!  Although it would still be good to see exactly what 
you did to make the digital out work on the Audigy, I managed in one 
last hurrah to get my AC97 codec optical sound output working with 5.1 
sound.   (It's an Asus P4PE motherboard and an AD1980 chip, in case 
others search for this info.)

mplayer wouldn't do 5.1 output if I specified -ao alsa9:spdif, or any 
other -ao option in fact.  When I had those options set, I would just 
get the left and right stereo outputs -- no centre, left rear or right 
rear channels.  However mplayer will output the 5.1 sound if you just 
give -ac hwac3, as an argument.  In short, I had the right argument, I 
just had too many things specified.  My current mplayer command line 
setting is:

mplayer dvd:// -cdrom-device %d -fs -zoom -quiet -monitoraspect 16:9 -vo 
xv -ac hwac3,

No -ao option whatsoever.

Gerald Schepens wrote:

> I just bought an Audigy card (an Audigy ES 5, part # SB0160 to be 
> exact).  I can't seem to make the digital out work on it.  So I wonder 
> what drivers you're using, exactly which card you're using, and what 
> you had to do to get the digital out to work.  In short, it'd do me a 
> world of good if you could do a bit of a brain dump on your sound 
> card.  Thanks!
>
> Jarod C. Wilson wrote:
>
>> On Mar 6, 2004, at 01:01, Simon Kenyon wrote:
>>
>>> On Saturday 06 March 2004 06:16, Jarod C. Wilson wrote:
>>>
>>>> Or all from the command line:
>>>>
>>>> /usr/bin/mplayer -fs -zoom -quiet -monitoraspect 16:9 -vo xv -ao
>>>> alsa9:spdif -ac hwac3, <video file>
>>>
>>>
>>>
>>> would you mind telling me what sound card you have and what you have 
>>> in your
>>> .asoundrc file? i'm curious because of the "alsa9:spdif" bit. is 
>>> that "out of
>>> the box functionality" or have you done something fancy in your 
>>> .asoundrc
>>> file (which frankly confuses me)
>>
>>
>>
>> Nothing fancy in .asoundrc, and the card is a SoundBlaster Audigy. 
>> Works like a charm, passing raw ac3 to my amp, falling back to pcm 
>> when there is no ac3 (from the -ac3 hwac3, switch, the ',' being key 
>> for fall-back).
>>
>> $ cat ~/.asoundrc
>>  pcm.emu10k1 {
>>  type hw
>>  card 0
>>  }
>>
>>  ctl.emu10k1 {
>>  type hw
>>  card 0
>>  }
>>
>>
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>
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