On Sat, 2006-04-22 at 19:57 +0000, David Bell wrote:
> Here are the lines from my .asoundrc file for stereo to 5.1 ch upmix
>
> I run a SB Audigy 24bit so i would assume that it would be similar.
>
>
> pcm.ch51dup {
> type route
> slave.pcm surround51
> slave.channels 6
> ttable.0.0 0.9
> ttable.1.1 0.9
> ttable.0.2 0.75
> ttable.1.3 0.75
> ttable.0.4 0.5
> ttable.1.4 0.5
> ttable.0.5 0.5
> ttable.1.5 0.5
> }
>
>
> This does not give "5.1" but it merely duplicates the sound to the other
> channels.
>
Well, it's impossible to turn a stereo source into discrete 5.1 - of
course there will have to be some copying.
> Also as mentioned above there is no LFE channel as such.
>
> then in XMMS or whatever you use the device:
> plug:ch51dup
>
> I am going to be keeping an eye on this as well as i would like to know how
> to get LFE to work.
Please read Takashi Iwai's posts in alsa-devel archive from 4/7/2006,
titled "Topics around surround", "Yet another round around surround",
and the entire thread "Changes over dmix: 1.0.11rc4 and future" starting
3/27/2006. These explain the new surround plugins but the LFE filtering
issue is still open.
Of course you need ALSA 1.0.11 for these to work.
Lee
-------------------------------------------------------
Using Tomcat but need to do more? Need to support web services, security?
Get stuff done quickly with pre-integrated technology to make your job easier
Download IBM WebSphere Application Server v.1.0.1 based on Apache Geronimo
http://sel.as-us.falkag.net/sel?cmd=lnk&kid=120709&bid=263057&dat=121642
_______________________________________________
Alsa-user mailing list
[email protected]
https://lists.sourceforge.net/lists/listinfo/alsa-user
