[Ardour-Users] Wiggling the sidebar: crackling noise

[jonetsu at teksavvy.com]

On Thu, 15 Sep 2016 12:15:15 -0500
Paul Davis <paul at linuxaudiosystems.com> wrote:

> On Thu, Sep 15, 2016 at 12:13 PM, jonetsu at teksavvy.com
> <jonetsu at teksavvy.com
> > wrote:
> 
> > Hello,
> >
> > When tracks are playing, wiggling with the mouse the right sidebar
> > in the tracks display back and forth about mid screen rapidly (the
> > sidebar showing some groups) will provoke crackling noise.  Does
> > this mean that the video subsystem of the machine is not optimized
> > or somewhat lacking ? Processor is i5 3.40GHz, 16GB RAM, on-board
> > video. Mixbus 32C 3.6.0, 14 tracks, 20 audio plugins.

> That is definitely the most likely cause. Sometimes it can actually be
> electrical noise too (RF between video and audio interfaces)

Is there anything on Ardour's (or jack's) side that can be configured to
use larger (or smaller) buffers, or anything, short of getting a new
machine based on i7 with 32GB of RAM ?

Kernel is real-time. jackd, of version
1.9.9.5+20130622git7de15e7a-1ubuntu1, is invoked as:

/usr/bin/jackd --sync -T -P80 -ndefault -dalsa -dhw:M1010LT -r44100
-p64 -n4

(yes, the -n option is still there)