[ale] Sound question
JK
jknapka at kneuro.net
Wed Feb 10 14:35:51 EST 2010
On 2/10/2010 12:24 PM, Ryan Marshall wrote:
> Well, I've got more questions than answers, really.
>
> First, are you using a realtime kernel?
I don't think so. I used to build kernels all the time, but now
I'd prefer to stick with distro-supplied ones if possible, for fear
of breaking something else :-(
> Secondly, why aren't you
> using jack?
Mainly because of:
>> Now there are so many acronyms
>> and packages involved that I have absolutely no idea what they're
>> all doing.
I do have jack installed. When I tell csound to use it, via
-+rtaudio=jack, it complains: "rtjack(): cannot connect to JACK
server". jackd is running.
> IIRC, I usually pull between 40 and 60 ms of latency and
> that's a mostly vanilla setup. I know it can get much lower with the
> right tweaks and hardware.
Just adding -+rtaudio=alsa to the csound command line reduced
latency to negligible levels, although I'm getting a horrendous
constant high-pitched whine and some nasty artifacts. I can
see I'm sort of on the right track, though.
> Also, Jack may be a mess when it comes to the UI and config, but once
> you figure it out, it really is a wonderful tool.
The problem I'm having right now is being totally clueless about
how all the layers of Linux sound architecture fit together, which
ones I need and which not, etc. I'd love to read something about
how all that stuff is supposed to work together (ALSO, PulseAudio,
JACK, etc).
Thanks,
-- JK
--
We Americans are a freedom-loving people, and nothing says "freedom"
like Getting Away With It. -- Guy Forsyth, "Long Long Time"
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