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

[Barry Duggan]

Hi,

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?

Thanks.
---
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
> things.
>
> Best regards,
> Marcus
> 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
> > my
> > 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)
> > sysdefault
> > 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
> > 'mute'
> > function.
> >
> > Any suggestions?
> >
> > Thanks