asound: Channels count non available

[sirduke]

Hello,

I followed the instructions in the "How to Setup" sticky post and can't get asound to record or play anything on the card. Recording from any number of channels (tried 1,2,3,4,5,6) fails and so does playing 1-8 channels.

Example
pi@raspberrypi:~ $ arecord -l
**** List of CAPTURE Hardware Devices ****
card 0: audioinjectoroc [audioinjector-octo-soundcard], device 0: AudioInject-HIFI cs42448-0 []
Subdevices: 1/1
Subdevice #0: subdevice #0
pi@raspberrypi:~ $ arecord -d 10 -D hw:0,0 -r 96000 -f S24_LE -c 6 out.wav
Recording WAVE 'out.wav' : Signed 24 bit Little Endian, Rate 96000 Hz, Channels 6
arecord: set_params:1239: Channels count non available

[flatmax]

Hi there,

It is possible that your .asoundrc has been autowritten by the system.
Can you please copy your .asoundrc file here ? thanks

Also can you please show the output of the capitol letter version of the command you typed :

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arecord -L

thanks
Matt

[sirduke]

Code: Select all

pi@raspberrypi:~ $ arecord -L
null
    Discard all samples (playback) or generate zero samples (capture)
pulse
    PulseAudio Sound Server
anyChannelCount
sysdefault:CARD=audioinjectoroc
    audioinjector-octo-soundcard,
    Default Audio Device
dmix:CARD=audioinjectoroc,DEV=0
    audioinjector-octo-soundcard,
    Direct sample mixing device
dsnoop:CARD=audioinjectoroc,DEV=0
    audioinjector-octo-soundcard,
    Direct sample snooping device
hw:CARD=audioinjectoroc,DEV=0
    audioinjector-octo-soundcard,
    Direct hardware device without any conversions
plughw:CARD=audioinjectoroc,DEV=0
    audioinjector-octo-soundcard,
    Hardware device with all software conversions

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pi@raspberrypi:~ $ cat .asoundrc
pcm.!default {
#       type hw
#       card 0
        type hw
        slave.pcm "anyChannelCount"
}

ctl.!default {
        type hw
        card 0
}

pcm.anyChannelCount {
    type route
    slave.pcm "hw:0"
    slave.channels 8;
    ttable {
           0.0 1
           1.1 1
           2.2 1
           3.3 1
           4.4 1
           5.5 1
           6.6 1
           7.7 1
    }
}

ctl.anyChannelCount {
    type hw;
    card 0;
}

[flatmax]

OK - there is a bug in the .asoundrc, it was originally set up correctly, however when you change any sound settings in pixel, it messes with the .asoundrc.
On line 4, can you change "type hw" to "type plug" as shown here in the manual settings section.

You can also try to stop if from being overwritten by making it read only :

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chmod a-w ~/.asoundrc

If you want to change the file in future, you have to give it write permissions.

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chmod ug-w ~/.asoundrc

Let me know how that goes.

Oh by the way, you should be able to test that you can use any channel count by using the awnyChannelCount plugin manually (even though it should be default) :

Code: Select all

aplay -DanyChannelCount file.wav

thanks
Matt

[sirduke]

Great! After changing that and downgrading my alsa-utils version, everything is working smoothly.