Re: help with guitarix settings - jack issue

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Quoting Cedric Roux <sed@xxxxxxx>:

----- "Paul Davis" <paul@xxxxxxxxxxxxxxxxxxxxx> wrote:

On Fri, Mar 25, 2011 at 7:09 PM, Cedric Roux <sed@xxxxxxx> wrote:

> something. There are issues, like jack refusing to work with
> buffers of less than 512 frames (I am not with a rt kernel)

when you say "refuse" do you mean "will not start" or "performs
badly"?

jackd -d alsa -C hw:2 -P hw:0 -r 44100 -p 256

leads to:

jackdmp 1.9.6
JACK server starting in non-realtime mode
Cannot lock down memory area (Cannot allocate memory)
creating alsa driver ... hw:0|hw:2|256|2|44100|0|0|nomon|swmeter|-|32bit

1. You aren't running jack with realtime priorities and memory locking.
   Make sure you're in the audio group, have "@audio - rtprio 99" and
   "@audio - memlock unlimited" in /etc/security/limits.d/audio.conf and
   start jack with a "-P 70" flag prior to "-d alsa".

2. Built in Intel soundcards usually work better with 3 periods per buffer

3. Why are you using different soundcards for capture and playback?


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