[pulseaudio-tickets] [Bug 49058] New: Offer profiles to split 4-channel in-/outputs into two stereo channels

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=49058

             Bug #: 49058
           Summary: Offer profiles to split 4-channel in-/outputs into two
                    stereo channels
    Classification: Unclassified
           Product: PulseAudio
           Version: unspecified
          Platform: Other
        OS/Version: All
            Status: NEW
          Severity: enhancement
          Priority: medium
         Component: tools
        AssignedTo: pulseaudio-bugs at lists.freedesktop.org
        ReportedBy: phillip.berndt at googlemail.com
         QAContact: pulseaudio-bugs at lists.freedesktop.org
                CC: lennart at poettering.net


I am using an Alesis iO4 [1], which is an external USB audio device. It has 4
input and 4 output channels, which ought to be used to connect four instruments
(or two stereo instruments) to the PC and to get two stereo signals from it to
2x2 speakers. ALSA detects this as one 4-channel input and one 4-channel
output, which is then interpreted by PulseAudio as one 4-channel input and a
sorround output. While for most use cases this interpretation was correct, it
is clearly wrong here: I'd expect two stereo inputs (or four mono) and two
stereo outputs.

It would be nice if I could configure this by simply selecting another profile
from the GUI.

[1] http://www.alesis.com/io4

Also see bug #49056

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