Re: New user with an ICUSBAUDIO7D

Hmm, none of these are 1 channel.  I do want 2 channels but so far
I've got 1 electret cartridge on prototype board trying to figure out
how much amplification I need.

USB Sound Device at usb-3f980000.usb-1.5, full speed : USB Audio

Playback:
  Status: Stop
  Interface 1
    Altset 1
    Format: S16_LE
    Channels: 8
    Endpoint: 6 OUT (ADAPTIVE)
    Rates: 44100, 48000
  Interface 1
    Altset 2
    Format: S16_LE
    Channels: 2
    Endpoint: 6 OUT (ADAPTIVE)
    Rates: 44100, 48000
  Interface 1
    Altset 3
    Format: S16_LE
    Channels: 4
    Endpoint: 6 OUT (ADAPTIVE)
    Rates: 44100, 48000
  Interface 1
    Altset 4
    Format: S16_LE
    Channels: 6
    Endpoint: 6 OUT (ADAPTIVE)
    Rates: 44100, 48000
  Interface 1
    Altset 5
    Format: S16_LE
    Channels: 2
    Endpoint: 6 OUT (ADAPTIVE)
    Rates: 96000

Capture:
  Status: Stop
  Interface 2
    Altset 1
    Format: S16_LE
    Channels: 2
    Endpoint: 5 IN (ASYNC)
    Rates: 44100, 48000



On 7/20/20, Clemens Ladisch via Alsa-user
<[email protected]> wrote:
> Alan Corey wrote:
>> arecord -f S16_LE -d 10 -r 16000 --channels=1 --device="hw:2,0"
>> /tmp/test-mic.wav
>> Recording WAVE '/tmp/test-mic.wav' : Signed 16 bit Little Endian, Rate
>> 16000 Hz, Mono
>> arecord: set_params:1345: Channels count non available
>
> I suspect recording always uses channels.
> Please show the contents of /proc/asound/card2/stream0.
>
>
> Regards,
> Clemens
>
>
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