Mapping sound jacks (line outs)

karnaf · 02-18-2011, 11:37 AM

Hi all,

I have an Ubuntu machine, with an on-board sound card. One of those with about 5 output jacks (green, blue, red, black, pink). As far as I know, there are defaults as to what goes where, like black=center, red=line-in, etc.

How can I change what goes where? let's try the easy case, that all play the same output or that it's stereo and red=right blue=left?

I was reading a bit and was hoping it was something to do with .asoundrc, but got lost there

Any help would be appreciated.

Thanks!
karnaf

aplay -l output:

Code:

**** List of PLAYBACK Hardware Devices ****
card 0: Intel [HDA Intel], device 0: STAC92xx Analog [STAC92xx Analog]
  Subdevices: 0/1
  Subdevice #0: subdevice #0

aplay -L output

Code:

pulse
    Playback/recording through the PulseAudio sound server
front:CARD=Intel,DEV=0
    HDA Intel, STAC92xx Analog
    Front speakers
surround40:CARD=Intel,DEV=0
    HDA Intel, STAC92xx Analog
    4.0 Surround output to Front and Rear speakers
surround41:CARD=Intel,DEV=0
    HDA Intel, STAC92xx Analog
    4.1 Surround output to Front, Rear and Subwoofer speakers
surround50:CARD=Intel,DEV=0
    HDA Intel, STAC92xx Analog
    5.0 Surround output to Front, Center and Rear speakers
surround51:CARD=Intel,DEV=0
    HDA Intel, STAC92xx Analog
    5.1 Surround output to Front, Center, Rear and Subwoofer speakers
surround71:CARD=Intel,DEV=0
    HDA Intel, STAC92xx Analog
    7.1 Surround output to Front, Center, Side, Rear and Woofer speakers

frankbell · 02-19-2011, 08:18 PM

You need to determine how much of this is software controlled and how much is hardware controlled.

The first thing you need is a wiring or circuit diagram for the sound card before you can figure out how the hardware interfaces with the software.