live instruments into Linux

[Adam Hudson]

Is anyone here familiar with the process of getting sound from live instruments into Linux?  I've gotten started with Ubuntu Studio and some of the applications it comes with this week in order to have a Linux based music machine.  However, I am not able to consistently produce sound, nor am I finding clear understanding of audio routing from the forums and videos I've watched.

My current goal is to just get sound from my electric guitar processed through an audio interface, have that signal become processed by an amp simulation software called Guitarix, then sent out through the hardware audio output of my choosing.

I've learned that JACK is the routing tool I need to be using.  For graphic control, I'm using qjackctl.  

My current issues are:

1.) if I use an audio interface that only has an input with no output (like the apogee jam series), JACK does not seem to give me any option to output the signal.

2.) if I use an audio interface that has an input and output (like the POD HD500x), JACK does not allow me to route the sound to the output of my choosing; it just defaults to the hardware output, which is bad in my use case because that overlaps with the dry sound I'm inputting into my interface.

3.) I do not understand where I need to be placing JACK Sink and JACK SOURCE in the routing chain.  The forums I've read state that this is a way to interact with some other sort of audio managing software called PulseAudio, but I'm not sure I understand the link between these two. 

I understand that there is a lot of "read the manual" or "do your homework" implied here, but in a literal sense I cannot find the manual for JACK (No man page for this) and the forums I have read all seem to make sense until I come back to my machine, route the audio in a way that I think is getting explained, and then end up with either silence or ear bleeding oscillation.  

Thank you for any perspective,

Adam

[Adam Hudson]

Update on the current journey: I've figured out how to bypass Pulse Audio using qjackctl routing.  However, the final output is still going to a default setting labeled "system".  I'm meeting a bit of a limit with this GUI, but have found a few forums dedicated to the CLI that may provide the controls I'm seeking to select the desired output.  Hoping to use the audio interface as an input with the dedicated headphone jack on the laptop as the output.  If I find success, I'll post the commands and the forums I used for guidance here.

Other than that: the latest update of Ubuntu Studio is proving quite a pleasant experience.  All hotkeys were correctly bound upon install, no odd heating or driver issues, etc.  So far it's been a smooth plug and play experience.  We'll see if something goes wrong this evening now that I've said that haha.

-bASH

[Michael L]

This doesn't answer or contribute to answering your question, BUT for backup (recording) purposes, (if you don't already have one) I recommend TASCAM and / or Zoom digital audio recorders, money well spent.  Can also pitch your questions and look at gear at Trew audio by Metrocenter.

--
--
You received this message because you are subscribed to the Google Groups "NLUG" group.
To post to this group, send email to nlug...@googlegroups.com
To unsubscribe from this group, send email to nlug-talk+...@googlegroups.com
For more options, visit this group at http://groups.google.com/group/nlug-talk?hl=en

---
You received this message because you are subscribed to the Google Groups "NLUG" group.
To unsubscribe from this group and stop receiving emails from it, send an email to nlug-talk+...@googlegroups.com.
To view this discussion on the web visit https://groups.google.com/d/msgid/nlug-talk/9e36d25e-d563-45da-adbb-d8262b603405%40googlegroups.com.