[PD] latency for RME Hdsp on Windows

Matthias Blau blau_m at web.de
Sat Apr 30 23:48:44 CEST 2005

hm, interesting.
The other day we had another problem with Portaudio ASIO on a HDSP 
system on WinXP: channels were not in sync, differed by multiples of 64 
Is this a known problem, and are there any solutions?

Thanks, Matthias

Thomas Grill schrieb:
>>> 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 i
>>> 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?
>> i got reports, that the native asio in devel allows you to run the hdsp
>> with pretty low latencies .... there is a rather old build:
>> http://www.geocities.com/themokabar/software.html
> Indeed the native ASIO interface provides the best latency, but also 
> Portaudio ASIO is working quite well with the devel version.
> They are both not 100% clean though, especially when switching hardware 
> buffer sizes with PD open (but DSP off).
> best greetings,
> Thomas
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