Re: [LAU] Komplete Audio 6 and Jack

On Tue, 12 Aug 2014, David wrote:

> I'm completely new to this, so be kind to me please.
>
> Ubuntu studio 14.04
> Komplete Audio 6
> Rode condensor mics.

I am not sure so I may be asking obvious questions. Does the KA6 have
phantom power turned on (48v switch on the back)? Does the KA6 show levels
from the mic(s)? Are there level controls on the KA6 (yup)? Are they up?

Next: aplay -l and arecord -l says what? Ah someone has done that already:

The lines that matter:
card 1: K6 [Komplete Audio 6], device 0: USB Audio [USB Audio]
   Subdevices: 0/1
   Subdevice #0: subdevice #0
card 1: K6 [Komplete Audio 6], device 0: USB Audio [USB Audio]
   Subdevices: 1/1
   Subdevice #0: subdevice #0

> I've found this link which says it should "just work",
>
> http://lists.linuxaudio.org/pipermail/linux-audio-user/2013-October/094733.html

Well sort of. It does say "set the connections in qjackctl". I am not sure
what that means.
In qjackctl in setup-Settings There is an interface box. The intuitive
thing is to click the V beside and pick one... don't do this. Instead
click on the > box and choose hw:K6. This should give 6 in and 6 out. If
not... you will want to see if using Input Device and Output Device works
better. I am not familiar with the K6 so I can't say. It should not be too
hard to connect the input directly to the output to see if there is sound,
but I prefer to start meterbridge and connect there so I know there is no
hw monitor stuff giving me false info. Also, in a terminal, run alsamixer
and make sure the capture levels are up. Or switches need to be set. There
seems to be some capture switches.

> but I can't seem to get response from the inputs (microphones). I did manage
> to make Yoshimi talk to the KA6 via Jack but that isn't what I need.

So that is outputs.

> Ultimately I want to be able to simply record stereo microphones into Ardour
> or Audacity. Preferably Audacity because I'm familiar with it.

Sounds like that should work.

> I suspect that I'm not configuring Jack connections correctly but don't know
> enough about it to see what the problem is.
>
> I've set the interface in qjackctl settings to the KA6.
>
> The KA6 never shows up in the volume control panel in the way that a USB

One wonders which volume control pannel that is, and where within that.

> headset would. The KA6 does show up in both input and output sides of the
> qjackctl ALSA tab.

The ALSA tab is MIDI i/o (yes there are two of them for two kinds of MIDI)
You want to see i/o in the Audio tab. There should be system on both
sides. and when expanded there should be 6 on each side.

Just sort of a splatter of ideas....

--
Len Ovens
www.ovenwerks.net
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