13 Jan
2008
13 Jan
'08
12:23 a.m.
ciao
Il giorno Sat, 12 Jan 2008 21:10:56 +0000
John Anderson <ardour(a)semiosix.com> ha scritto:
qmidiarp has jack support but i don't know how use it to connect this
application with a sofsynt (for example);
there are some other new (and maybe gpl) arpeggiator?
On Sat, 2008-01-12 at 19:58 +0100, luigi curzi wrote:
with software monitoring do you mean the recording from software
sources?
i have a realtime kernel: 2.6.24-rc5 with realtime patch;
i have 1 gigabyte ram with a pentium 4 (2.66 gigahertz, no ht) system
and an audigy es soundcard;
in my /etc/security/limits.conf i have:
@audio - nice -19
@audio - rtprio 95
@audio - memlock 512000
and i use this script when system starts:
chrt -v -f -p 80 `pgrep softirq-timer`
chrt -v -f -p 80 `pgrep softirq-hrtimer`
chrt -v -f -p 82 `pgrep IRQ-21` --> my soundcard's irq
chrt -v -f -p 98 `pgrep IRQ-8` --> rtc's irq
chrt -v -f -p 70 `pidof "jackd"`
something wrong?
ciao/hello
i use some applications on pc with a updated debian unstable to
make some beautiful electronic (:-)) music. i don't have external
midi controller or some instruments, i only use my pc. i have a
creative audigy es.
1) what configuration can i use in jack for best performance?
now i use this command line:
/usr/bin/jackd -v -R -P70 -dalsa -dhw:0 -r48000 -p256 -n2 -P -s -zt
with a latency of 10.7 ms; is it important latency in my case?
2) when i use vsthost with wineasio and some vsts i have some xruns
and i can hear some poppings? is it a normal problem?
The basic idea is that if you're hearings pops (xruns) either you need
to run jack with a higher latency, or you need to look at an rt (real
time) kernel.
Low latency is necessary if you are using a midi controller to drive a
synth on the PC, or if you are recording and you need to do software
monitoring.
3) as midi
arpeggiator i try to use qmidiarp (gpl but old, it is a
dead project?) and hypercyclic (freeware, new and very good) but i
can figure out how can use these softwares? precisely i don't know
how link these programs with jack.
For an audio program to support jack, the programmers need to use the
jack api. Or if the programs support alsa but not jack, there is an
alsa-jack plugin (or whatever it's called).
bye
John
Luigi
--
~*~*~*~*~*~*~*~*~*~*~*~*~*~*~*~*~*~*~*~*~*~*~*~*~*~*~*~*~*~*~*
Io sono
lo sbaglio, il momento di confusione, l'inopportuno
Non sono niente.
Non sarò mai niente.
Non posso volere d'essere niente.
A parte questo, ho in me tutti i sogni del mondo.
F. Pessoa
~*~*~*~*~*~*~*~*~*~*~*~*~*~*~*~*~*~*~*~*~*~*~*~*~*~*~*~*~*~*~*