On Mon, May 18, 2015 at 9:08 AM, Daniel Barbosa <[email protected]> wrote: > Hello. > > I'm trying to record audio from 3 USB microphones, using ALSA. > When I connect 1 USB mic directly to the BBB, everything works fine. It gets > recognized and it records without any issue. > However, when I connect the 3 USB mics to a USB hub (that connects to the > BBB), the microphones aren't detected by ALSA. The microphones are connected > and powered, they are listed by 'lsusb', but ALSA does not recognize them as > sound cards and so, the mics can't be used to record sound.
It could be simply a power problem---how are you powering your system? If you're drawing extra power for your USB devices the usual advice is to use a) powered hub b) use the BBB power jack and c) use externally powered USB devices (like hard drives). -- For more options, visit http://beagleboard.org/discuss --- You received this message because you are subscribed to the Google Groups "BeagleBoard" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/d/optout.
