Paul Miller wrote:
I've also been trying to get AC3 to work with my SB Live! Platinum (not 5.1). It works perfectly in Windows and PowerDVD, so I know it's capable. How are you executing xine or mplayer? Is there a program to test AC3 without a DVD? I created /etc/asound.conf based on yours and restarted alsa, yet I did not notice any differences.Your the man Kyle. Dolby Digital and DTS now work on my SB Live DE 5.1 card with Xine.
I noticed that you have a couple more alsa control devices than I have.. Do I need to somehow enable my Live Drive II?
$ ls -1 /dev/snd
controlC0
hwC0D0
midiC0D0
pcmC0D0c
pcmC0D0p
pcmC0D1c
pcmC0D2c
pcmC0D2p
timer
If I execute mplayer (1.0-pre6-0.2) with
mplayer dvd:// -ao alsa:device=spdif -ac hwac3
my Yamaha receiver switches back and forth between PCM and Digital. It should say Digital if AC3 is working (both interfaces are actually digital). I also noticed a message saying that "Sample format big endian AC3 not yet supported".
For xine (libxine1 1.0-1), I made the changes to my .xine/config file and didn't notice any difference than before any changes. It outputs PCM only with the signal is significantly attenuated compared to mplayer, with no degradation in quality.
I'm using Debian/unstable with kernel 2.6.9 and alsa-base 1.0.7-2.
Any ideas?
Thanks! -Paul
On Tuesday 04 January 2005 7:04 pm, Kyle Rose wrote:
Gregg Farhat <[EMAIL PROTECTED]> writes:_______________________________________________
Okay. I have an onboard sound card which is disabled, and the sblive. The sound currently works through the SPDIF for mythtv and mythvideo, but when I play a DVD I get static. I don't intend to sound dumb, but I did not know how to handle the entrys with multiples. Here is what I get from lsmod | egrep snd
snd_emu10k1 88521 1
snd_rawmidi 21733 1 snd_emu10k1
snd_pcm 83529 1 snd_emu10k1
snd_timer 25413 1 snd_pcm
snd_seq_device 6473 2 snd_emu10k1,snd_rawmidi
snd_ac97_codec 58821 1 snd_emu10k1
snd_page_alloc 8393 2 snd_emu10k1,snd_pcm
snd_util_mem 3521 1 snd_emu10k1
snd_hwdep 6597 1 snd_emu10k1
snd 45477 10
snd_emu10k1,snd_rawmidi,snd_pcm,snd_timer,snd_s
eq_device,snd_ac97_codec,snd_util_mem,snd_hwdep
soundcore 7713 1 snd
So, for now I'd blacklist snd_seq_device, snd_rawmidi, and snd_hwdep. Here's what I have:
snd_intel8x0 snd_ac97_codec snd_pcm_oss snd_mixer_oss snd_pcm snd_timer snd snd_page_alloc
Okay, so once you do this, here's my /etc/asound.conf (or .asoundrc):
pcm.krose-dmix { type dmix ipc_key 3516 ipc_key_add_uid yes slave { pcm "hw:0,0" period_time 0 period_size 1024 buffer_size 4096 rate 48000 } }
pcm.dsp0 { type plug slave.pcm "krose-dmix" }
ctl.mixer0 { type hw card 0 }
pcm.!default { type plug slave.pcm "krose-dmix" }
I actually *only* have problems with AC3 output with mythtv, and only on the first attempt: all subsequent attempts succeed. I have no problems with xine. I'd just make sure you have the following lines in your .xine/config:
audio.a52_pass_through:1 audio.alsa_a52_device:iec958:AES0=0x6,AES1=0x82,AES2=0x0,AES3=0x2 audio.alsa_mmap_enable:0 audio.alsa_default_device:default audio.driver:alsa
The alsa_a52_device line may be commented out; if so, you should be able to leave it as-is.
Lemme know how this works.
Cheers,
Kyle
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Be sure to post this to the alsa list if you haven't already.
Thanks very much for your detective work, its MUCH appreciated.
Graeme Woollett _______________________________________________ mythtv-users mailing list [email protected] http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-users
