[pulseaudio-discuss] Scarlett interface as default device

Rodolfo Thomazelli pe.soberbo at gmail.com
Wed Mar 20 18:04:17 PDT 2013

I don´t know if this is helpful, but this audio interface (scarlett) works
with its own mixer on Windows and on Mac. When I bought it, I had to
download both mixer and driver form site. The mixer controls some inner
properties of the device, and those properties remain "registred" in the

Another information: the program I´m using (mataa on Octave) sees all the
inputs and outputs that the device offers.

Thank very much for all the help!

2013/3/20 Daniel Mack <zonque at gmail.com>

> On 20.03.2013 23:49, Len Ovens wrote:
> >
> > On Wed, March 20, 2013 3:01 pm, Rodolfo Thomazelli wrote:
> >
> >> In fact I can't produce sounds with "mataa", but I think that this is
> >> another problem.  If any correlated problem appears, I'll come back for
> >> get
> >> help.
> >>
> >> I would like to be able to fix the problem at the root, but as I am new
> to
> >> the
> >> Linux world, I would not know where to begin.
> >
> > I was looking for more info on that box and it appears there is a bug in
> > ALSA... which as I looked farther it seems you have found help in the
> > right place. I hope the patch works for you. (the kernel patch)
> The kernel patches seem to have worked, as at least aplay works fine. It
> was a long-standing but in ALSA that would unsupported mixer units make
> the entire sound card probe fail, and that is fixed now.
> For PA though, it seems the card needs a special profile, just for the
> fact that is has more than a stereo output and it cannot magically
> mapped into some 5.1 device setup. I think it would be worth thinking
> about falling back to a multiple stereo mapping in such cases, if no
> special profile can be found. Even just making the first stereo pair
> accessible seems like a better solution than dropping the device
> alltogether, right?
> Thanks,
> Daniel
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