On Wed, Sep 17, 2014 at 4:56 PM, Brent Busby <brent@keycorner.org> wrote:
On Wed, 17 Sep 2014, F. Silvain wrote:

I suggest the same as Giso. If you are learning music, you might want to use other audio apps at the same time anyway. So go for the JACK Audio Connection Kit. I've used it ever since I started with Linux. I don't have an RME, but I have a multichannel audio interface.

I have the Multiface II, and it's nearly impossible to address through raw Alsa without some deep kung-fu.  Though Jack you should be able to see all of its i/o's and use it with MPlayer or whatever you want.

I use a Multiface, too, and keep Jack going 100% of the time for the machine it is on (I route audio from other sources into it also, including another computer). Multiface isn't really intended for end-user consumer-y casual use, but is intended for multitrack studio & Multi I/O kinds of things. 

--
Brett W. McCoy -- http://www.brettwmccoy.com
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"In the rhythm of music a secret is hidden; If I were to divulge it, it would overturn the world."
    -- Jelaleddin Rumi