Re: [LAU] Behringer and Linux

On Mon, 30 Mar 2015 06:10:00 -0700 (PDT)
Len Ovens <len@ovenwerks.net> wrote:

> On Mon, 30 Mar 2015, David Santamauro wrote:
>
> > So do these mixers give 16, 18 and 32 discreet input channels over
> > USB (recognized by ALSA) or are only their AUX/MAIN outputs sent
> > over USB to the computer?
>
> The channels are routable. That is you can choose what (if anything)
> goes to the USB line. However, I do not know if the USB xceiver can
> be set to only send a few lines. Routing only 8 channels to USB may
> mean that there are 32 USB lines but only audio on 8. It seems the
> X32 may not come with USB out of the box, that may be an extra card.
> It comes with AES50 OOTB. The Xair does have USB, 18 i/o. There are
> 11 points on the channel strip where the audio can be routed from
> including raw from the ADC to post fader. You can also choose Aux in,
> fx in and out, bus and mains. The Setup page seems to suggest USB can
> be set to 18 or 2 i/o.
>
> With reguard to the X32, their web page says:
> "We’ve also made the X32 even more flexible, with swappable expansion
> cards for connecting to other multi-channel audio networking via USB,
> ADAT, MADI and Dante protocols, in addition to the onboard ULTRANET
> and AES50 connectivity."
>
> Then:
> "A wide array of X-Expansion Cards can easily be used in place of the
> pre-installed X-USB card to release the power of X32 into existing
> MADI*, Dante* and ADAT networks."
>
> So it does come with the USB card installed. The mixer app does not
> show the USB IF... I guess it checks what is actually there first.
> But the routing looks to be raw in only. The routing is much harder
> to understand... but a lot more i/o to deal with.
>
> If I was buying one, I would be tempted to walk into the local music
> store with a laptop and try it out.

FWIW, I use an X32 to record my band. It does come with both FW and
class compliant USB interface, and I regularly record 32 channels from
it using jack/linux. Haven't tried to use it as a control surface..

-- 
   Joakim
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