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I'm not sure if this helps but I tried connecting my speakers directly into the tv card audio output and I have sound
sudo apt-get install gnome-alsamixer
When your in alsamixer and you press F5 to view all outputs there should be an input for Mic? Navigate with your left or right arrow key to highlight the Mic (capture) input.use the up/down arrow to raise the levels
Then search your menus for "Sound Mixer"
graeme@Linux1 ~ $ arecord -l**** List of CAPTURE Hardware Devices ****card 0: Intel [HDA Intel], device 0: ALC888 Analog [ALC888 Analog] Subdevices: 1/1 Subdevice #0: subdevice #0card 0: Intel [HDA Intel], device 2: ALC888 Analog [ALC888 Analog] Subdevices: 1/1 Subdevice #0: subdevice #0graeme@Linux1 ~ $
Also would suggest to use VLC to capture as it is using alsa by default (unlike xawtv defaulting to oss)
Audio output failed:The audio device "plughw:CARD=Intel,DEV=2" could not be used:No such file or directory.
v4l2-ctl -C mute
v4l2-ctl -c mute=0
graeme@Linux1 ~ $ v4l2-ctl -C mutemute: 1graeme@Linux1 ~ $ v4l2-ctl -c mute=0graeme@Linux1 ~ $
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