17 Sep
2017
17 Sep
'17
5:09 p.m.
On Sat, Sep 16, 2017 at 10:17:04PM -0700, benravin wrote:
I'm facing a timing jitter which happens
periodically due to some interrupt,
which is causing the task to be delayed. Since this happens periodically, it
is indeed a slow varying timing jitter, for example every 400ms, the timing
deviation is in the order of few ms ( 4-6ms). This is not getting filtered
out by DLL, and results in a slow varying oscillations which never dies.
Any way to identify and limit these timing jitters and not to take any
action on drift correction by DLL ?
It's impossible to say anything about this if you don't provide
numbers. How big is the resulting resampling ratio variation ?
If a few ms jitter leads to anything perceptible then your DLL
and/or resampling control loop are not dimensioned correctly,
or there is another basic problem with your design.
Ciao,
--
FA
A world of exhaustive, reliable metadata would be an utopia.
It's also a pipe-dream, founded on self-delusion, nerd hubris
and hysterically inflated market opportunities. (Cory Doctorow)