Lee Revell wrote:
> Try ALSA 1.0.11, many bugs have been fixed since 1.0.11-rc2
Ok,.. is it going to be part of 2.6.17?

>> First of all does this chip support hardware mixing and full duplex?
> Hardware mixing no, full duplex yes
What is the benefit of hardware mixing at all? Of course I understand that you
can play several streams at the same time (without using a sound daemon like
esd/arts/etc).
But is hardware mixing much better than software mixing (I think one must use
dmix for software mixing)?

This is also an important question for me to decide which soundcard I should 
buy.
In an additional post to this list I told that I'd prefer the TerraTec Aureon
7.1 Universe. But this one porbably doesn't support true hardware mixing and
true full duplex (does it?).
So if I buy an expensive soundcard like this (it costs about € 150,00) should
the card have the hardware mixing feature?



What my card should be able to do is (of course with all additional features
like 7.1 sound and so on)...
- esound (or any other sound daemon) should be able to access the card so that
GNOME applications that use esd can play sounds or record audio
- but in each case it should be possible for other processes to access the ALSA
devices too (both playing and recording); like mplayer,.. or gstreamer
applications if I set up gst to use ALSA).
- and I want Ekiga (gnomemeeting, or any other VoIP software to be able to open
conferences (multiple conferences too, although I think Ekiga itself does not
support this yet) - which means Ekiga must be able to play and record audio (via
ALSA but not ESD) - AND !! while doing this (communication via VoIP) I still
want to hear my other system sounds (those from GNOME via esd or other ALSA
using applications.

Ok,.. so of course full duplex is required for all the above (otherwise I would
not be able to record and hear simultaneously).
But is hardware mixing required for this? If so,.. can all this achieved
(without any drawbacks to the hardware mixing way !!!) via software mixing?
I've already did some poor tests with software mixing (as I told before I'm not
an ALSA expert ;) )... but the sound came always very disturbed or with a big 
lag.


Are there applications that can excusively lock the ALSA devices (for playing
and/or recording) even when hardware and/or software mixing is set up? (I ask
because I wonder wheter applications like Ekiga do this)


> What's your libasound2 version?  Dmix should be enabled automatically
> for this chipset.  If you're using ESD make sure it is running in ALSA
> mode not OSS.
libasound2: 1.0.11-3

I'm very sure that ESD runs in ALSA mode, because I don't have activated any OSS
stuff in the kernel (not even the wrappers), and I've installed the Debian
package libesd-alsa0.


>> 2nd Problem: The Mixer does not work correctly. When I change the settings 
>> for
>> Master (e.g. via gnome-volume-control or alsamixer) nothing happens at all. 
>> But
>> when I vary the value for Headphones it behaves as if Headphones would be the
>> Master.
>> Is there any way to correct this?.
> Try the latest ALSA release and if it's still broken file a bug report.
Ok,.. I'll do that,.. but please not that this problem exists since last october
(when I assembled the computer). I've just been to lazy to take care on it until
now ;)

Regards,
Chris.



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