I created a mixer profile for my M-Audio FastTrack Pro USB card that
allows both stereo output channels to be used.
I should probably add a profile that allows the input channels to appear
as two mono sources, as well as the current stereo source, but I don't
have a microphone around to test it (and I'm lazy).
This was simple, since it is similar to the Native Instruments Audio 4
DJ profile file that was included, but not identical (only two channels
input e.g.)
I wonder, shouldn't ALSA/PulseAudio be able to somehow guess the profile
so that the two stereo channels appear automatically?
And another thing: The sinks appear as "FastTrack_Pro ...", with an
underscore instead of a space for some reason.
I created a file /etc/udev/rules.d/91-pulseaudio.rules with the
following contents:
SUBSYSTEM!="sound", GOTO="pulseaudio_x_end"
ACTION!="change", GOTO="pulseaudio_x_end"
KERNEL!="card*", GOTO="pulseaudio_x_end"
SUBSYSTEMS=="usb", ATTRS{idVendor}=="0763", ATTRS{idProduct}=="2012",
ENV{PULSE_PROFILE_SET}="maudio-fasttrack-pro.conf"
LABEL="pulseaudio_x_end"
and the attached file maudio-fasttrack-pro.conf was placed in
/usr/share/pulseaudio/alsa-mixer/profile-sets/
# This file is part of PulseAudio.
#
# PulseAudio is free software; you can redistribute it and/or modify
# it under the terms of the GNU Lesser General Public License as
# published by the Free Software Foundation; either version 2.1 of the
# License, or (at your option) any later version.
#
# PulseAudio is distributed in the hope that it will be useful, but
# WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
# General Public License for more details.
#
# You should have received a copy of the GNU Lesser General Public License
# along with PulseAudio; if not, write to the Free Software Foundation,
# Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
; M-Audio FastTrack Pro
;
; This card has one duplex stereo channel called A and an additional
; stereo output channel called B.
;
; We knowingly only define a subset of the theoretically possible
; mapping combinations as profiles here.
;
; See default.conf for an explanation on the directives used here.
[General]
auto-profiles = no
[Mapping analog-stereo-a-output]
description = Analog Stereo Channel A
device-strings = hw:%f,0,0
channel-map = left,right
direction = output
[Mapping analog-stereo-a-input]
description = Analog Stereo Channel A
device-strings = hw:%f,0,0
channel-map = left,right
direction = input
[Mapping analog-stereo-b-output]
description = Analog Stereo Channel B
device-strings = hw:%f,1,0
channel-map = left,right
direction = output
[Profile output:analog-stereo-all+input:analog-stereo-all]
description = Analog Stereo Duplex Channel A, Analog Stereo output Channel B
output-mappings = analog-stereo-a-output analog-stereo-b-output
input-mappings = analog-stereo-a-input
priority = 100
skip-probe = yes
[Profile output:analog-stereo-a-output+input:analog-stereo-a-input]
description = Analog Stereo Duplex Channel A
output-mappings = analog-stereo-a-output
input-mappings = analog-stereo-a-input
priority = 40
skip-probe = yes
[Profile output:analog-stereo-b+input:analog-stereo-b]
description = Analog Stereo Output Channel B
output-mappings = analog-stereo-b-output
input-mappings =
priority = 50
skip-probe = yes
[Profile output:analog-stereo-a]
description = Analog Stereo Output Channel A
output-mappings = analog-stereo-a-output
priority = 5
skip-probe = yes
[Profile output:analog-stereo-b]
description = Analog Stereo Output Channel B
output-mappings = analog-stereo-b-output
priority = 6
skip-probe = yes
[Profile input:analog-stereo-a]
description = Analog Stereo Input Channel A
input-mappings = analog-stereo-a-input
priority = 2
skip-probe = yes
--
David Kågedal
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