i.MX6Q Sabre Automotive Infotainment: analog audio outputs issue

[Igor]

Hi all,

I'm using i.MX6Q Sabre Automotive Infotainment CPU and Base boards with Ubuntu operating system.

The Sabre AI Base board has eight analog audio outputs  (audio codec is CS42888).

Currently with Gstreamer, I can manage two audio "sinks": the first is hdmi audio channel and the second is the audio codec  (CS42888) .

The issue is that I don't understand how to select the different analog outputs of the audio codec using gstreamer: currently only the first two channels are enabled (Base board connector “J26-3”).

How can I manage the other six channels of the audio codec using Gstreamer?

Please, could anyone give me some advice?

Thanks in advance,

Igor

[Igor]

Hi all,

I discovered the existence of the file "asound.conf"....:smileylaugh:

Modifying properly that file, I have set two independent stereo channels:

######################asound.conf########################

pcm.dshare {

    type dmix

    ipc_key 2048

    slave {

        pcm "hw:0"

        rate 44100

        period_time 0

        period_size 1024

        buffer_size 8192

        channels 4

    }

    bindings {

        0 0

        1 1

        2 2

        3 3

    }

}

pcm.rightx {

    type plug

    slave {

        pcm "dshare"

        channels 4

    }

    ttable.0.0 1

    ttable.1.1 1

}

pcm.leftx {

    type plug

    slave {

        pcm "dshare"

        channels 4

    }

    ttable.0.2 1

    ttable.1.3 1

}

############################################################

I have found the information at this link: http://alsa.opensrc.org/.asoundrc

Igor