Ask Ubuntu is a question and answer site for Ubuntu users and developers. Join them; it only takes a minute:

Sign up
Here's how it works:
  1. Anybody can ask a question
  2. Anybody can answer
  3. The best answers are voted up and rise to the top

I need high quality usb audio card for ubuntu 12.04 PCs so I bought Roland Duo-Capture which is very promising. the problem is that with:

cat /proc/asound/cards

I can see only the integrated audio card

0 snd_hda_intel

While issuing the


I see the device:

Bus 004 Device 002: ID 0582:012b Roland Corp.

Is there a way to have ALSA understand this is an audio card? If there's no chance to have this usb audio card working on ubuntu, may I have a list of high quality usb audio cards which for sure are supported by ubuntu 12.04?

share|improve this question
up vote 1 down vote accepted

As seen here, flick the little switch on the bottom marked EXT from * to **. No idea what this means but the device will now be recognised and work in Ubuntu.

share|improve this answer

Your Answer


By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.