[LAU] Phonic Helix Board 12 FireWireMKIIcompatibility(linux/ffado)

pete shorthose zenadsl6252 at zen.co.uk
Mon Feb 9 13:00:51 EST 2009


On Mon, 09 Feb 2009 18:04:40 +0100
Jörn Nettingsmeier <nettings at folkwang-hochschule.de> wrote:

> Simon W. Fielding wrote:
> > 
> > OK - I now have a working basic FC10 system - relevant details are :-
> > 
> > Hardware: Toshiba Tecra M3
> > Kernel: 2.6.26.8-1.rt15.1.fc10.ccrma.i686.rt
> > Jackd: jackdmp 1.9.1
> > ffado: 2.0-0.6.rc1.fc10.ccrma (libffado 1.999.40)
> > 
> > 
> > Initial cursory testing shows (no recording load, just an idle mixer
> > with nothing connected) :-
> > 
> > jackd -R -dfirewire -r96000 -p16 -n3 ... jackd won't even start - uses
> > too much CPU
> > jackd -R -dfirewire -r96000 -p32 -n3 ... jackd won't even start - uses
> > too much CPU
> 
> these are insanely low settings.
> i have never *ever* heard of anybody running successfully at -p16 -n3,
> and you are trying it at 96k. for the rest of us, that would be -p8!
> 
> imnsho, -p128 should be perfectly fine for 96k. don't waste your time
> "tuning" your system for latencies below that.

Meh. If you ask me, negative latency is the future.

pete.



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