[ardour-users] Dolby Digital Sound Mixing
edwin at peer.co.za
Sun Aug 14 10:21:21 PDT 2005
On Sunday 14 August 2005 17:18, Allan Klinbail wrote:
> Hi, I'm using a 64-bit AMD system (Gentoo). The only thing I can't get
> working are the VST libraries.... (through any of the three available
> options).... otherwise my system is very stable and working at low
> latency ... (2.9 ms in 44.k 32 bit mode with 16+ tracks and multiple
> plugins). My only recommendation is use Gentoo if you can and optimize
> as much as you can.
I would love to know more about your setup. I am also running an amd64 system
under Gentoo and mostly it works. I am using two RME Multiface boards to get
16 tracks of analogue inputs but jack suffers horrible xruns if I actually
try to get ALSA to map both both cards into one virtual card for jack. The
solution I've come up with at the moment is sending the analogue inputs of
the one card via ADAT to the other card and only speaking to the first card
with ALSA. Not ideal, but for now it's okay. I may want to use the other
inputs later tho'.
Are you running Ingo's low latency kernel? I haven't managed to get it to run
stable - when I even get a version of it to actually compile under amd64.
Using the standard gentoo-sources, I haven't been able to get down to 2.9ms
reliably on fairly meaty hardware (Dell PE1800, dual EM64T, SCSI RAID-5 w/5x
10 000RPM drives).
Other weird issues I have are:
1) Ardour (beta29, haven't ventured into ardour-cvs yet) sometimes crashes. I
haven't reported any of these problems yet, because I have not been able to
reproduce them reliably.
2) Jamin (portage, 0.9.0-r1) sometimes fails to start but works properly once
it does and 0.95.0-r6 causes horrible crackle with lots of xruns.
3) Not ardour related, but Rezound dies on playback (This particular issue
has already been reported on Rezound's bug tracker for amd64, so at least I
know I'm not the only one).
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