Arch Linux

anthonyclark

Member

From: WA,USA

Registered: 2007-10-07

Posts: 48

Surround Sound SB Live! 24bit (PCI) [SOLVED]

ok, im running arch 2007, (dont panic!) and i followed the ALSA guide on the Arch Wiki to get my sound working.
Most of it was a success.

The only issue is that i have 4.1 but only the front  channels work with

speaker-test -c 4 -t wav

im positive i have my ALSAMIXER correct, i think the problem lays in the ~/.asoundrc and the '/etc/asound.conf'.

~/.asoundrc

pcm.dmix51 {
type dmix
ipc_key 1024
slave {
pcm "hw:0,0"
rate 44100
channels 6
period_time 0
period_size 1024
buffer_time 0
buffer_size 4096
}
}

pcm.20to51 {
type route
slave.pcm surround51
slave.channels 6
ttable.0.0 1
ttable.1.1 1
ttable.0.2 1
ttable.1.3 1
ttable.0.4 0.5
ttable.1.4 0.5
ttable.0.5 0.5
ttable.1.5 0.5
}

pcm.duplex {
type asym
playback.pcm "20to51" #muss als pcm.20to51 definiert sein
capture.pcm "dsnooper"
}

/etc/asound.conf ...

pcm.ca0106 {
type hw
card 0
}

ctl.ca0106 {
type hw
card 0
}

pcm.snd_card {
type hw
card 0
device 0
}

ctl.snd_card {
type hw
card 0
device 0
}



pcm.dmixer {
type dmix
ipc_key 1024
ipc_perm 0666
slave.pcm "snd_card"
slave {
period_time 0
period_size 1024
buffer_size 4096
rate 44100
channels 6
}
bindings {
0 0
1 1
2 2
3 3
4 4
5 5
}
}

pcm.dsnooper {
type dsnoop
ipc_key 2048
ipc_perm 0666
slave.pcm "snd_card"
slave
{
period_time 0
period_size 1024
buffer_size 4096
rate 44100
}
bindings {
0 0
1 1
}
}

pcm.duplex {
type asym
playback.pcm "dmixer"
capture.pcm "dsnooper"
}

pcm.!default {
type plug
slave.pcm "duplex"
}

Please help.
Thank You

-Anthony

Last edited by anthonyclark (2007-10-15 16:54:18)

matersci

Member

From: Hellas

Registered: 2006-01-19

Posts: 167

Re: Surround Sound SB Live! 24bit (PCI) [SOLVED]

I have the same card with 5.1 speakers.
with speaker-test -c 5 -t wav only the 2 front  channels work, but I have surround when using vlc, amarok etc.

anthonyclark

Member

From: WA,USA

Registered: 2007-10-07

Posts: 48

Re: Surround Sound SB Live! 24bit (PCI) [SOLVED]

hmmm yeah im not getting surround at all it makes me sad.
Are my asound configs correct? I got them off of ubuntu forums...

-AnthonyClark

anthonyclark

Member

From: WA,USA

Registered: 2007-10-07

Posts: 48

Re: Surround Sound SB Live! 24bit (PCI) [SOLVED]

ok for some reason edited .asoundrc as root. 'sudo nano ~/.asoundrc' is a big NO-NO
solved.

For anyone with a PCI SB LIVE 24bit this is for you.

PS- speaker Test will only output from the front channels but using 'alsamixer' and adjusting the front and rear channels give you full 4.1/5.1 surround.

-tpnerdcore

Xarturkhann

Member

From: Ankara

Registered: 2006-02-17

Posts: 55

Re: Surround Sound SB Live! 24bit (PCI) [SOLVED]

This is my ~/.asounrc:

~/.asoundrc

ctl.ca0106 {
        type hw
        card 0
}

pcm.!dmix {
        type plug
        slave {
                pcm surround71
                channels 8
        }
}

pcm.!default {
        type plug
        slave.pcm "dmix"
        slave.channels 8
        route_policy duplicate
}

for 5.1 just change surround71 to surround51 and channels 8 to channels 6