10 Apr
2005
10 Apr
'05
6:39 p.m.
Anybody have any tips on what to look at to tweak it? Seems like it should
do better than that... I didn't see it as a problem until in the last few
days I started playing with playing softsynths live directly into Ardour -
you've gotta be running at -p 1024 or there's a latency that screws up your
playing - at 8192 it's a downright 8th note delay...
Here's some vitals that I can think of:
OS: gentoo 2.6.6-rc1 kernel (alsa built in)
positively ancient! emerge --sync && emerge gentoo-sources
will get you a 2.6.12-rc5 or whatever is the freshest..
secondly, disable OSS and ALSA in the kernel config (its ok to leave the toplevel
'sound' box checked) and emerge alsa-driver (to avoid compiling all drivers add a
line to /etc/make.conf eg:
ALSA_CARDS="mia,intel8x0,intel8x0m,usb-audio,virmidi"
if theres still issues, you could try mm-sources (which may have the realtime stuff
merged) or the realtime stuff floating around..havent had a need here as the stock gentoo
kernel works fine w/ 64 & 128 sample buffer...
jack: 0.99.0
ardour: beta28
jack command line:
jackd -R -d alsa -d hw:0 -r 48000 -p 8192 <------- (or whatever)
harddrive:
multicount on
io support: 32 bit
unmaskirq on
use dma on
keepsettings off
readonly off
readahead on
chip: 2ghz amd (I THINK - not at computer now)
ram: 512MB
thanks for any ideas! :)
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Aaron Trumm
www.nquit.com
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