24 Sep
2008
24 Sep
'08
7:31 a.m.
Mysth-R wrote:
2008/9/23 Pieter Palmers <pieterp(a)joow.be <mailto:pieterp@joow.be>>
Mysth-R wrote:
Hi,
I've got a strange behaviour with my midi controller and/or
freebob/ffado.
I made a pure data patch, with a midi learn function. So I can
control everything with my midi controller.
When I use jack with Freebob or ffado (I tested both) and a
Presonus Firebox, I got cracking sounds every time I move
faders, pots from my Midi Controler.
When I use jack with alsa and a poor usb berhinger UCA202 it
works perfectly : no cracking sounds
Is your midi controller attached to the Presonus box or is it a USB
midi controller?
I tried with USB and directly attached to the Presonus. My controller is
a Korg microKontrol, but I tried with another controller too (an EMU I
think)
I also tried with Jackd and Jackdmp , cause I am on Gentoo 64bits.
Strange...
What settings do you use for jackd?
My settings are :
/usr/bin/jackd -R -dfirewire -r48000 -p256 -n3
does it happen with higher buffer sizes too?
try increasing the priority of jackd to 65:
/usr/bin/jackd -R -P65 -dfirewire -r48000 -p256 -n3
I suspect that it has something to do with the kernel layer since it's
present in both freebob and ffado.
Greets,
Pieter