Multi-channel sound + rear out for cs46xx chipset soundcards

Dolio · l33t Joined: 17 Jun 2002 Posts: 650

<NEW>
I found out that the recent (past couple days) ALSA snapshots happen to do other interesting things with the cs46xx chipset, like enabling rear output (on the Turtle Beach Santa Cruz at least, if not on other chipsets). So, here's a quick guide on how to get it working for you (hopefully):

Make a directory to put the cvs sourcecode. Like ~/alsa-cvs (I'll assume you're using that in this guide). Go to that directory.

Now you need a copy of the cvs code. You can go about this in two ways, which I won't describe here, since they're already on the alsa website. Here's A link to the download page. Make sure you either get the stuff direct from cvs or get a snapshot after August 2nd (I synced with cvs on August 6th, so I know that works).

Update: I learned how to enable the new dsp stuff without editing the actual source files.

Now you need to edit a file. Open the ~/alsa-cvs/alsa-driver/pci/cs46xx/Makefile file, and uncomment the lines under

Wedge_ · Posted: Fri Aug 09, 2002 3:49 pm Post subject: Thanks

I've been trying to find out if this was possible for weeks

My old Vortex 2 card can do it, and it was really annoying me.

andreasw · n00b Joined: 21 Jun 2002 Posts: 44

I can't believe it

. Mulit Channel + Digital Optical out, thank you very much for that post, I already wanted to install windows for recording mp3s to my md v
ia optical out

PS: I use a Terratec DMX Xfire 1024 and till now all works fine

mfg

Andy

Wedge_ · Posted: Sun Aug 11, 2002 8:08 pm Post subject: Hmm

I've got the latest CVS snapshot installed at the moment, but I've tried two older ones and had the same problem both times. While the sound(s) are playing everything is fine, but when XMMS starts a new song, or I load a new file in MPlayer, everything freezes for a second or so, then it starts playing. Anyone know why?

Dolio · l33t Joined: 17 Jun 2002 Posts: 650

Well, I'm still using the August 6th snapshot that I made myself, as in my first post, and I don't have the problem you specified currently.

However, I did install 1.4 (with gcc 3.2), and I do recall getting what you specified (a little freeze, as if lots of cpu power were being used) with that, using the exact same source (I shared my home directory where I keep the code), and I don't really have any explanation for that.

Are you using 2.95 or 3.x? If you're using 3.x, that might be it (I don't know why). If not, then maybe you should recompile (or reboot! That always works!).

_________________
They don't have a good bathroom to do coke in.

Wedge_ · Posted: Mon Aug 12, 2002 11:09 am Post subject:

I'm using 1.2 with gcc 2.95. I'll try the same snapshot you're using and see if that helps.

Wedge_ · Posted: Fri Oct 25, 2002 5:18 pm Post subject:

Just thought I'd say that the new rc 4 drivers that have been added to portage seem to enable the new DSP settings by default, so you don't need to edit the makefile anymore.

raid517 · l33t Joined: 06 Mar 2003 Posts: 946

Hi, I know this is a long shot, but does anybody know how to do this on via82xx based chips? All I want to do is enable digital SPDIF out (optical or coaxil is fine). I have a Via 8233 based chip. This is a very common chip used on many boards - and I do know digital out was well supported with alsa in Redhat 9.0, so any advice anyone can offer on getting digital out sound wiorking on this card would be very appreciated.

Thanks in advance.

Q