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Re: [Discuss-gnuradio] USB Audio Adapter as audio source

From: Barry Duggan
Subject: Re: [Discuss-gnuradio] USB Audio Adapter as audio source
Date: Thu, 04 Jul 2019 14:52:58 -0400
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I ran "arecord -L" per Marcus and tried 'hw:0,0' but it didn't work. Then I tried 'pavucontrol' per Kyeong; I don't think I changed anything, but when I tried 'hw:0,0' again, it works! However, in the shuffle, the output sound which had been going to the HDMI port now goes to the USB dongle. I can always listen with headphones ;)

Also I attemped to set a symbolic link to have a permanent address. I stored: SUBSYSTEM=="usb", ATTRS{idVendor}=="0d8c", ATTRS{idProduct}=="0014", SYMLINK:="C-Media-audio" in /etc/udev/rules.d/99-usb-serial.rules but it didn't seem to have any effect. The system always assigns a link of "Device" to the dongle, but I haven't been able to use that in the 'device' field of the Audio Source.

Any thoughts?

Barry Duggan

On 2019-07-04 02:27, Müller wrote:
Hey Barry,

what I usually do is run "arecord -L" and pick one of the listed

Best regards,
On Wed, 2019-07-03 at 21:48 -0400, Barry Duggan wrote:
I am trying to use a C-Media USB Audio Device as the audio source in
flow graph. So far, I have not had any success with the device name.

I tried:
all variations of "C-Media Electronics Inc. USB Audio Device"
default (also an empty device name)
Device (there was a sym link)
hw:x,y with various numbers
plughw:x,y with various numbers
'PCM',x with various numbers
/proc/asound/card2 (which is the correct card from the list)

alsamixer shows the device as valid. There does not seem to be a

Any suggestions?


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