Philipp Morger <[EMAIL PROTECTED]> writes:

> Audio: RealTek ALC650 6-channel audio CODEC
>
> That's the one I have onboard, and this one is working for me... they
> look to me the same... what does you iecset show, while you are playing
> an ac3 encoded sound? (preferably in a player where dts works....)

$ iecset 
Mode: consumer
Data: non-audio
Rate: 48000 Hz
Copyright: protected
Emphasis: none
Category: general
Original: 1st generation
Clock: 1000 ppm

(I switched off the copyright to no avail)

But iecset -x gives:
$ iecset -x
AES0=0x02,AES1=0x00,AES2=0x00,AES3=0x02

Notice that the AES0 and AES1 do not fit the ac3dec command:
./ac3dec -C -Diec958:AES0=0x6,AES1=0x82,AES2=0x0,AES3=0x2 dolby.ac3

Is that normal ?

> can you give me your xine-config (without the #'s please), version and
> some for mplayer? possibly and mplayer output, like what happens with

I've removed from mplayer.conf the parameters not related to sound:

vo=xv,x11,
ao=alsa1x,


Dolby digital (but no sound :-( ):

$ mplayer -aid 130 -ac hwac3 -ao alsa1x:spdif -vo null -v dvd://4
MPlayer 1.0pre4-3.3.3 (C) 2000-2004 MPlayer Team
[...]
[open] audio stream: 2 audio format: ac3 (5.1) language: en aid: 130
[...]
DEMUXER: freeing demuxer at 0x8730460  
ASF_check: not ASF guid!
[...]
Forced audio codec: hwac3
Opening audio decoder: [hwac3] AC3/DTS pass-through SP/DIF
dec_audio: Allocating 8192 bytes for input buffer.
dec_audio: Allocating 16384 + 65536 = 81920 bytes for output buffer.
hwac3: switched to AC3, 448000 bps, 48000 Hz
AUDIO: 48000 Hz, 2 ch, 16 bit (0x400), ratio: 56000->192000 (448.0 kbit)
Selected audio codec: [hwac3] afm:hwac3 (AC3 through SPDIF)
[...]
==========================================================================
Checking audio filter chain for 48000Hz/2ch/16bit -> 48000Hz/2ch/8bit...
[libaf] Adding filter dummy 
[dummy] Was reinitialized, rate=48000Hz, nch = 2, format = 0x00000020 and bps = 2
AF_pre: af format: 2 bps, 2 ch, 48000 hz, big endian AC3 
AF_pre: 48000Hz 2ch AC3
alsa-init: requested format: 48000 Hz, 2 channels, AC3
alsa-init: compiled for ALSA-1.0.4
alsa-spdif-init: playing AC3, 2 channels
alsa-init: soundcard set to iec958:AES0=0x2,AES1=0x82,AES2=0x0,AES3=0x2
alsa-init: pcm opened in block-mode
alsa-init: chunksize set to 1024
alsa-init: fragcount=16
alsa-init: got buffersize=65536
alsa1x: 48000 Hz/2 channels/4 bpf/65536 bytes buffer/Signed 16 bit Little Endian
AO: [alsa1x] 48000Hz 2ch AC3 (1 bps)
AO: Description: ALSA-1.x audio output
AO: Author: Alex Beregszaszi, Joy Winter <[EMAIL PROTECTED]>
AO: Comment: under developement
Building audio filter chain for 48000Hz/2ch/16bit -> 48000Hz/2ch/8bit...
[dummy] Was reinitialized, rate=48000Hz, nch = 2, format = 0x00000020 and bps = 2
[libaf] Adding filter format 
Starting playback...




DTS (works): 
$mplayer -aid 139 -ac hwac3 -ao alsa1x:spdif -vo null -v dvd://4

[open] audio stream: 3 audio format: dts (5.1) language: en aid: 139
[...]
DEMUXER: freeing demuxer at 0x8730460  
ASF_check: not ASF guid!
[...]
==========================================================================
Forced audio codec: hwac3
Opening audio decoder: [hwac3] AC3/DTS pass-through SP/DIF
dec_audio: Allocating 8192 bytes for input buffer.
dec_audio: Allocating 16384 + 65536 = 81920 bytes for output buffer.
hwac3: switched to DTS, 768000 bps, 48000 Hz
AUDIO: 48000 Hz, 2 ch, 16 bit (0x400), ratio: 96000->192000 (768.0 kbit)
Selected audio codec: [hwac3] afm:hwac3 (AC3 through SPDIF)
==========================================================================
[...]
Checking audio filter chain for 48000Hz/2ch/16bit -> 48000Hz/2ch/8bit...
[libaf] Adding filter dummy 
[dummy] Was reinitialized, rate=48000Hz, nch = 2, format = 0x00000020 and bps = 2
AF_pre: af format: 2 bps, 2 ch, 48000 hz, big endian AC3 
AF_pre: 48000Hz 2ch AC3
alsa-init: requested format: 48000 Hz, 2 channels, AC3
alsa-init: compiled for ALSA-1.0.4
alsa-spdif-init: playing AC3, 2 channels
alsa-init: soundcard set to iec958:AES0=0x2,AES1=0x82,AES2=0x0,AES3=0x2
alsa-init: pcm opened in block-mode
alsa-init: chunksize set to 1024
alsa-init: fragcount=16
alsa-init: got buffersize=65536
alsa1x: 48000 Hz/2 channels/4 bpf/65536 bytes buffer/Signed 16 bit Little Endian
AO: [alsa1x] 48000Hz 2ch AC3 (1 bps)
AO: Description: ALSA-1.x audio output
AO: Author: Alex Beregszaszi, Joy Winter <[EMAIL PROTECTED]>
AO: Comment: under developement
Building audio filter chain for 48000Hz/2ch/16bit -> 48000Hz/2ch/8bit...
[dummy] Was reinitialized, rate=48000Hz, nch = 2, format = 0x00000020 and bps = 2
[libaf] Adding filter format 
Starting playback...


> and if you get sound and what dts light you have.

AC3: no sound 
DTS: sound with red light.

> Somehow I can't belive that an intel/nvidia chipset make all the
> difference.....

Weel, there's always the possibility that the embedded dolby digital
encoder (the soundstorm stuff) muck things up. Even though it's not
used.

> Please also tell me what input you used on the yamaha amp

DVD/VCR3

Frankly, I'm stumped. The only lead I can think of is this weird
output of iecset -x.

Thanks for your time.


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