babsyco babsyco wrote:
> Thanks guys, but the latency is still around 20ms when I don't use the 
> soundcard (I just tried it with the built in mic-that's the same as jack for 
> all intensive purposes, right?). Any other suggestions as to how I can get it 
> lower? I really wanna use it for live performance.

No. That is not the same as using it with jack, at least it would not be on a 
Linux
system, I could be wrong about mac, but from what I know nothing compares to 
using
jack, performance wise. Another issue could be externals, try measuring the 
performance
without any externals loaded and see if one of the ones you are using is 
causing latency.

Also, many commercial audio apps misreport latency; for example a large number, 
if
not most of them, report only the latency introduced by the app itself, which 
is in
their case actually cumulative with the latency introduced with the OS drivers 
and the
latency inherant in the DAC / ADC of the card itself. With jack, at least, you 
are getting
a much more accurate picture of the latency.

This is based on reports of users who have measured their latency and compared 
it with latencies
reported by jack and by mainstream nonfree software; there are actually 
applications to help you
measure the latency you are getting by looping back a coded signal between the 
DAC/ADC and
measuring the phase difference, this could actually be coded in PD and would be 
an
interesting exercise come to think of it.

_______________________________________________
[email protected] mailing list
UNSUBSCRIBE and account-management -> 
http://lists.puredata.info/listinfo/pd-list

Reply via email to