[linux-audio-user] jack latency & MIDI latency

[Antonio]

 From a few days I'm trying to use my pc as a synth to improve the 
sounds of my keyboard.
I've installed low-latency kernel, alsa, jack, muse, rosergarden... etc 
from planet ccrma.

I can't start jack with the period (-p) under 512 frames (with my SB 
Audigy) and a number of periods (-n) under 2. That mean that I have a 
latency of at least 23.2 msec (from qjackctl).

Does this latency affects the sound I hear when I play my MIDI keyboard 
with a synth (for example muse)?
Does anyone knows if the Audigy (player) can go under 512 of the -p 
parametre in jack?

With windows & cubase VST I can get a latency of about 10 ms that it's 
good for my purpose, while 20 msec

Can I play directly in to alsa to reduce the latency (jump the jack 
latency)?

I think that the only way to get the so claimed 2.9 msec latency is to 
reduce to 64 the numbers of frames, but I don't know if is it possible 
with my sound card and if my actual limit of 512 is due misconfiguration 
or is the real limit for the Audigy.

Anyone want correct, suggest, help me is welcome.

Antonio, bye