Hi,
On Fri, 2007-02-02 at 19:13 +0100, Markus Schulz wrote:
> Am Freitag, 2. Februar 2007 18:57 schrieb Peter Zubaj:
> > Hi,
> >
> > On Fri, 2007-02-02 at 16:28 +0100, Markus Schulz wrote:
> > > At first, ac3 passthru don't work _without_ ld10k1 and init_audigy
> > > script. The ICE958 Optical RAW Switch goes on during playing and
> > > all currently played pcm streams are off, but my receiver gets no
> > > ac3 signal.
> > > After starting ld10k1 and loading the initials with init_audigy
> > > script everything works fine.
> >
> > init_audigy initialize dsp in same way as it is initialized in alsa
> > driver for audigy 1. Some Audigy cards need swapped channels for ac3
> > some not.
>
> Why there are more controls after init_audigy than before.
> Perhaps cause of /etc/default/ld10k1 settings? (declares some initial
> values for init_audigy script)
I think, there is only one more control "Headphone".
> For example: EXTOUT_IEC958=1 -> AC3 Passthru is working after ld10k1
> startup+init_audigy?
>
> What did you mean with swapped channels? How can i influence this with
> original driver?
I think Audigy 2 (maybe some audigy 1 too) has hw bug, and for spdif
output channels needs to be swapped (left <-> right).
if you look in emu10k1_main.c there is definition for your card
{.vendor = 0x1102, .device = 0x0004, .subsystem = 0x00521102,
.driver = "Audigy", .name = "Audigy 1 ES [SB0160]",
.id = "Audigy",
.emu10k2_chip = 1,
.ca0102_chip = 1,
.spdif_bug = 1,
.ac97_chip = 1} ,
try remove line with .spdif_bug = 1,
> > > Next i have some problem to understand the mixer controls.
> > > At first there is no Mute-Control for: (independent of ld10k1
> > > loaded or not) Master, PCM, PCM-*, Front, Surround, ...
> > > This is a real pity.
> >
> > For mute control you can look in
> > https://bugtrack.alsa-project.org/alsa-bug/view.php?id=2137
> > there is patch, it is old, but probably will work. It is tested only
> > on my Audigy 1.
>
> ok, thanks. i will take a look. I think this should be also possible
> with some ld10k1 patch files? With my sblive 5.1 before, i had some of
> these "XXX-Switch" patch-objects in standard ld10k1 setup (init_live).
init_audigy script, there is some setup for mute switches, but is
commented out - need some work to get them back (probably simply
uncomenting some rows and commenting others).
> > > Furthermore it makes no sense to me why there are all surround
> > > controls are twice.
> > > I have the following:
> > > - PCM
> > > - PCM Center
> > > - PCM Front
> > > - PCM Surround
> > > - PCM LFE
> > > - Front
> > > - Center
> > > - Surround
> > > - LFE
> >
> > PCM Center, PCM Front, PCM Surround, PCM LFE are for 5.1 playback
> > (surround51 device)
> >
> > Front, Center, Surround, LFE controls upmixing of all stereo sources
> > to 5.1 (PCM + analog outputs).
>
> ok. Upmixing means the internal 5.1 prologic decoder? Is there any way
> to use it with alsa devices?
It means simple copy front to other channels (no prologic). I think
there is prologic alsa-lib plugin, but I am not sure.
Peter Zubaj
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