[linux-audio-user] Re: Wanted: Singing Capacitor Fix (was: blaming Jack)

[Kjetil Svalastog Matheussen]

Karsten Wiese:
> 
> Am Montag, 13. November 2006 17:11 schrieb Carlo Capocasa:
> > As always when blaming someone it turns out this has absolutely nothing
> > to do with the supposed culprit. Apparently, my lower-end Dell notebook
> > has a singing capacitor, which gets induced by the jack daemon calling
> > an interrupt, as indicated by the frequency of the noise problem
> > correlating to the jack buffer size. Interestingly, the noise is not
> > audible when the system is under some load.
> > 
> > My current approach is to find a load generator that will place a little
> > load on the system to make the hum go away while still leaving some room
> > for softsynths.
> 
> A simple load generator with low scheduling priority:
> 
> 	echo 'for ((;1;)); do i=0; done;'|nice -n 19 sh
> 
> Run it in a shell.
> Stop it with Ctrl+C.
> No need for kernel fix here ;-)
> 

Funny, I use something similar to heaten my bedroom. :-)