Arch Linux

killajoe

Member

From: Berlin Planet Earth

Registered: 2007-07-04

Posts: 168

Website

7.1 ALC888 card downmix to 5.1 Soundsystem does not work.

Card: NVidia [HDA NVidia], device 0: ALC888 Analog [ALC888 Analog]
It is a 7.1 onboard chip and i use a 5.1 Soundsystem.

When i put xine to 5.1 output i got the backgound sound but no speach.
With xine on 2.0 i can listen all.

What is the best way to downmix the 8 channels to 6???

Till now i do testing with alsa and .asoundrc but no luck only 2.0 or 7.1 sound works.

Please help!

---

Cancel me not -- for what then shall remain?
Abscissas, some mantissas, modules, modes, A root or two, a torus and a node:
The inverse of my verse, a null domain.
-- Stanislaw Lem, The Cyberiad

killajoe

Member

From: Berlin Planet Earth

Registered: 2007-07-04

Posts: 168

Website

Re: 7.1 ALC888 card downmix to 5.1 Soundsystem does not work.

http://git.alsa-project.org/?p=alsa.git … py;hb=HEAD

HDA Analyzer

This tool allows change the HDA codec setting using direct hardware access
bypassing driver's mixer layer.

To learn more about HDA (High Definition Audio), see
http://www.intel.com/standards/hdaudio/ for more details.

Please, if you find how your codec work, send this information to alsa-devel
mailing list - http://www.alsa-project.org .

Bugs, ideas, comments about this program should be sent to alsa-devel
mailing list, too.

Thats quite cool!

But  i do not know what to do with that incredible tool!

http://www.intel.com/standards/hdaudio/

I found another treat about intel_HDA probs so i link there: http://bbs.archlinux.org/viewtopic.php?id=64543

Last edited by killajoe (2009-03-07 11:29:51)

---

Cancel me not -- for what then shall remain?
Abscissas, some mantissas, modules, modes, A root or two, a torus and a node:
The inverse of my verse, a null domain.
-- Stanislaw Lem, The Cyberiad

killajoe

Member

From: Berlin Planet Earth

Registered: 2007-07-04

Posts: 168

Website

Re: 7.1 ALC888 card downmix to 5.1 Soundsystem does not work.

With asoundconf and asoundconf-gtk i build a funktional asound setting but only for stereo....

---

Cancel me not -- for what then shall remain?
Abscissas, some mantissas, modules, modes, A root or two, a torus and a node:
The inverse of my verse, a null domain.
-- Stanislaw Lem, The Cyberiad

killajoe

Member

From: Berlin Planet Earth

Registered: 2007-07-04

Posts: 168

Website

Re: 7.1 ALC888 card downmix to 5.1 Soundsystem does not work.

no one knows some help about downmixing to 5.1?

---

Cancel me not -- for what then shall remain?
Abscissas, some mantissas, modules, modes, A root or two, a torus and a node:
The inverse of my verse, a null domain.
-- Stanislaw Lem, The Cyberiad

test1000

Member

Registered: 2005-04-03

Posts: 834

Re: 7.1 ALC888 card downmix to 5.1 Soundsystem does not work.

stereo's not good enough(an honest question)? how often do you use mono and would you even hear the difference if you did?

anyway, isn't 'mux' in alsamixer/kmix/whatever the 'downmixer' ?

I managed to fix my mic with alsa by copying the "official" hda-intel config, maybe you will fix your probem if you copy the "official" config to .asoundrc you too. it's in pacman -Ql alsa-lib.

Last edited by test1000 (2009-03-21 10:28:54)

---

KISS = "It can scarcely be denied that the supreme goal of all theory is to make the irreducible basic elements as simple and as few as possible without having to surrender the adequate representation of a single datum of experience." - Albert Einstein

killajoe

Member

From: Berlin Planet Earth

Registered: 2007-07-04

Posts: 168

Website

Re: 7.1 ALC888 card downmix to 5.1 Soundsystem does not work.

yes i can differ between mono and stereo.

My prob is that yes Stereo will be o.k. but i got a 5.1 Soundsystem and so i got SUB and Center Channels and yes i want do downmix to 5.1 caus the soundcard is 7.1 and so there are the side output a can not hear.

---

Cancel me not -- for what then shall remain?
Abscissas, some mantissas, modules, modes, A root or two, a torus and a node:
The inverse of my verse, a null domain.
-- Stanislaw Lem, The Cyberiad