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I have many camera and microphone source connected to ubuntu usb. But out of them 1 is only to be used for default case chrome/firefox/skype etc.

How can i tell Chrome browser via command line or javascript or any static configuration method to use always one camera input source and one microphone input source?

Not doing it like this way, cause it will be in remote locations (no hands and eyes)

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Offtopic reference to make permanent allow: support.google.com/chrome/answer/2693767?hl=en –  YumYumYum Aug 20 '13 at 19:44
Could you add the output of lsusb if they are usb devices, and/or lspci -nnk | grep -A10 Audio, pulseaudio --dump-conf, amixer -c 0, pacmd dump-volumes and pactl info, please. I don't know any relevant information for the camera but lsusb. –  Braiam Sep 7 '13 at 0:41

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