In addition, if the microphones have identical sound cards, you can identify them according to the USB port where they are connected using udev rules: http://alsa.opensrc.org/Udev A working example: http://zenbakaitz.servehttp.com Regards, José Luis ------------------------------------------------------------------------------ Find and fix application performance issues faster with Applications Manager Applications Manager provides deep performance insights into multiple tiers of your business applications. It resolves application problems quickly and reduces your MTTR. Get your free trial! https://ad.doubleclick.net/ddm/clk/302982198;130105516;z _______________________________________________ Alsa-user mailing list Alsa-user@xxxxxxxxxxxxxxxxxxxxx https://lists.sourceforge.net/lists/listinfo/alsa-user