[Alsa-user] problem with USB microphone

[Eric S. J. <es...@ha...>]

 0 [Intel          ]: HDA-Intel - HDA Intel
                      HDA Intel at 0xb0000000 irq 22
 1 [V050531        ]: USB-Audio - VXI TRANSLATOR USB7 050531
                      Micronas VXI TRANSLATOR USB7 050531 at usb-0000:00:1d.0-1,
full speed


I use a VXI microphone (shown above) for speech recognition.  For a variety of
reasons, USB pass-through to a virtual machine gobbles audio and I wanted to
experiment with using pulse audio to feed audio to the virtual machine.  I spent
a good deal of time with some very nice people on pulse audios IRC channel and
the microphone just wasn't visible to any of the pulse audio devices.  When you
bring up a mixer, the only audio device that shows is the built-in sound system
(HDA Intel).  After a significant debugging attempt, they thought it was an ALSA
problem and suggested I come to this mailing list to ask for help.

 if someone can help me diagnosis problem, let me know what information you need
and I will gladly make it available.


thanks.