Surround sound 5.1

mohbana · #1 16th February 2008, 01:34 PM

Surround sound

Hey guys, can someone please help me get surround sound working. I am running fedora 8 64 bit. My ubuntu file (~/.asoundrc) was;

Code:

# ALSA library configuration file

# Include settings that are under the control of asoundconf(1).
# (To disable these settings, comment out this line.)
</home/mohamed/.asoundrc.asoundconf>

# 6 channel dmix:
pcm.!surround51 {
    type dmix
    ipc_key 1024
    ipc_key_add_uid false
    ipc_perm 0660
    slave {
        pcm "hw:0,1"
        rate 48000
        channels 6
        period_time 0
        period_size 1024
        buffer_time 0
        buffer_size 5120
    }
}

# upmixing: 
pcm.ch51dup {
    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 "ch51dup" # upmix first
    capture.pcm "hw:0"
}

# change default device:
pcm.!default {
    type softvol 
    slave.pcm "duplex"
    control {
        name "Software Master"
        card 0
    }
}

# for aoss
pcm.dsp "duplex"

pcm.dsp1 "duplex"

I've placed the same thing under my home in fedora but i can't seem to get it working, well it still plays but i am not getting any surround sound.

cat /proc/asound/modules

Code:

 0 snd_cmipci
 1 snd_hda_intel
 2 snd_usb_audio

cat /proc/asound/cards

Code:

 0 [CMI8770        ]: CMI8738-MC8 - C-Media CMI8770
                      C-Media CMI8770 at 0xce00, irq 23
 1 [Intel          ]: HDA-Intel - HDA Intel
                      HDA Intel at 0xfdff8000 irq 22
 2 [SP2208WFP      ]: USB-Audio - Monitor Webcam (SP2208WFP)
                      Mic-OmniVision Technologies, Inc.538-2640-07.08.09.6 Monitor Webcam (SP2208WFP)

thanks very much for the help.

mohbana · #2 19th February 2008, 06:00 PM

please help, i would like to get the 5.1 surround working.