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
<alsa-user@lists.sourceforge.net> 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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> Alsa-user@lists.sourceforge.net
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