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darksides

Member

Registered: 2004-01-30

Posts: 18

[HOW YO] Multiple Audio card

Check loaded modules

[root@chobin darksides]# lsmod | grep pcm
snd_pcm_oss            38688  0 
snd_mixer_oss          14592  1 snd_pcm_oss
snd_pcm                69124  5 snd_usb_audio,snd_pcm_oss,cx88_alsa,snd_emu10k1,snd_ac97_codec
snd_timer              19076  3 snd_seq,snd_emu10k1,snd_pcm
snd_page_alloc          7816  2 snd_emu10k1,snd_pcm

then list your cards

[root@chobin darksides]# cat /proc/asound/cards
 0 [CX8811         ]: CX88x - Conexant CX8811
                      Conexant CX8811 at 0xfa000000
 1 [U0x46d0x8c5    ]: USB-Audio - USB Device 0x46d:0x8c5
                      USB Device 0x46d:0x8c5 at usb-0000:00:1d.7-4, high speed
 2 [Audigy         ]: Audigy - Audigy 1 [SB0090]
                      Audigy 1 [SB0090] (rev.3, serial:0x531102) at 0xe000, irq 21

then use alsaconf to generate /etc/modprobe.conf

Original modprobe.conf

#
# /etc/modprobe.conf (for v2.6 kernels)
#
# --- BEGIN: Generated by ALSACONF, do not edit. ---
# --- ALSACONF version 1.0.14 ---
alias snd-card-0 snd-emu10k1
alias sound-slot-0 snd-emu10k1
# --- END: Generated by ALSACONF, do not edit. ---

For example to use card 2 (audigy)

#
# /etc/modprobe.conf (for v2.6 kernels)
#
# --- BEGIN: Generated by ALSACONF, do not edit. ---
# --- ALSACONF version 1.0.14 ---
alias snd-card-0 snd-emu10k1
alias sound-slot-2 snd-emu10k1
# --- END: Generated by ALSACONF, do not edit. ---

result after reboot

[root@chobin darksides]# cat /proc/asound/cards
 0 [Audigy         ]: Audigy - Audigy 1 [SB0090]
                      Audigy 1 [SB0090] (rev.3, serial:0x531102) at 0xe000, irq 21
 1 [CX8811         ]: CX88x - Conexant CX8811
                      Conexant CX8811 at 0xfa000000
 2 [U0x46d0x8c5    ]: USB-Audio - USB Device 0x46d:0x8c5
                      USB Device 0x46d:0x8c5 at usb-0000:00:1d.7-4, high speed

Enjoy

Last edited by darksides (2007-07-09 17:39:30)