12 Jun
2011
12 Jun
'11
3:47 p.m.
On Sun, Jun 12, 2011 at 3:40 AM, Aaron Krister Johnson
<aaron(a)akjmusic.com> wrote:
Hi all--
I'm wondering if anyone else has experienced this:
I'm considering purchasing PianoTeq, but I wanted to try the demo. It seems
to work better with just the alsa driver than it does with jack, a reversal
of the usual situation.
I tested this several times by playing fast glissandi on the default piano
preset. Each time, my little EEE-PC netbook under jack choked with xruns and
a brief silence while PianoTeq 'reset' itself, but Alsa alone chugged away
with no xruns unless there was an extreme amount of load....
I'm wondering if anyone can comment on this. It seems odd, especially since
the jack developers claim jack adds no latency by itself to the picture in
any situation---so, do we have a situation where the code is better written
for the alsa driver than for jackd? It seems we do, in this case....
you should check the latency that it is using with ALSA. Assuming you
use the first audio device on the first sound card:
cat /proc/asound/card0/pcm0p/sub0/hw_params
and then compare that with your JACK settings.
--p