[PD] latency for RME Hdsp on Windows

Roman Haefeli reduzierer at yahoo.de
Sat Apr 30 12:16:09 CEST 2005

hi lalo, hi tim

----- Original Message -----
From: "Tim Blechmann" <TimBlechmann at gmx.net>

> > i'm trying to deal with latency in my winzoz system with hdsp rme
> > multiface. my latency settings are 128 or 256 samples block..and it
> > works very well  in Bidule and other software.
> > in the pd asio panel i can't set the latency lower than 18 ms....if
> > go  16 ms i get bad crackles.
> > does it mean that my total output latency is 256 sample (around 5 ms
> > at  44100) plus those 18 ms?
> > is anyone with a similar setup able to go lower?

my system:
pd-0.37.4, winxp, 1.7GHz Intel Mobile, HDSP RPM

the lowest reachable settings on my machine are 64samples(minimum) in
the HDSP-Settings and 5ms in pd's audio-settings dialog (asio). actually
i don't know, what latency this is resulting in.but when i speak through
a mic/[adc~] /[dac~]/earphones i hardly feel the latency. when doing
more 'sophisticated' stuff, i usually set the pd-audio-dialog to a
higher delay (20ms) in order to avoid clicks and crackles.

> i got reports, that the native asio in devel allows you to run the
> with pretty low latencies .... there is a rather old build:
> http://www.geocities.com/themokabar/software.html

thank for posting this. i will check this out and give you report.


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