Redirect Sound output to a specific port…Realtek?

Question

I am nearly as much of a noob about Linux/Ubuntu as one can be... currently dual booting side-by-side with Win 7 Pro 64 bit. That being said... system has a 5.1 surround sound card. The main regular port (green) used if you have one analog plug doesnt work properly with Windows....Realtek HD Audio drivers provide a simple work around... just plug said analog plug into another one of the 5.1 ports (say, blue). Then assign the port as "Front Speakers".

That works fine for Windows 7. How do I do the same reassignment/redirect for Ubuntu? I have no sound at this point and the computer is near inaccesible (wires go through the floor to the basement where the computer is) so switching cables back and forth isnt much of an option...

Thanks in advance for any viable help.

Answer 1

If I understand your question correctly, you would like to remap the channels on your soundcard?

You can write your own pulseaudio profile-set for your sound card. See my post about this on ubuntuforums.org:

http://ubuntuforums.org/showpost.php?p=12151686&postcount=13

This was for my sound card

Save the code as /usr/share/pulseaudio/alsa-mixer/profile-sets/native-instruments-komplete-audio6.conf

[General]
auto-profiles = no

[Mapping main-stereo-out]
description = Main stereo output
device-strings = hw:%f,0
channel-map = front-left,front-right,aux0,aux1,aux2,aux3
direction = output

[Profile output:stereo]
description = Main Stereo Output
output-mappings = main-stereo-out
input-mappings =
priority = 80
skip-probe = false

and create a new file for udev rules, for example

/etc/udev/rules.d/89-pulse-komplete-audio.rules

and paste the following (but replace the xxxx and yyyy with correct hardware ids, you can list them with lsusb):

SUBSYSTEMS=="usb", ATTRS{idVendor}=="xxxx", ATTRS{idProduct}=="yyyy", ENV{PULSE_PROFILE_SET}="native-instruments-komplete-audio6.conf"

From what I see the idVendor for Native Instruments is 17cc. You can see the existing configurations for other NI cards in /lib/udev/rules/90-pulseaudio.rules file.

After you have created these two files, disconnect your card, run

sudo service udev restart