[PD-ot] how low (latency) can you go?

aws andy at a2hd.com
Sat Dec 16 20:23:31 CET 2006


I have measured such things precisely when the application required  
it.  Its also fairly trivial to "hear" the latency by clapping into a  
microphone and monitoring it over headphones after it passes through  
the system.  A 10msec difference is quite audible.

A general method for latency measurement of any system is described  
in this paper:

Matthew Wright, Ryan Cassidy, Michael Zbyszynski, Audio and Gesture  
Latency Measurements on Linux and OSX, Proceedings of ICMC 2004, Miami


On Dec 16, 2006, at 5:38 AM, IOhannes m zmoelnig wrote:

> Hans-Christoph Steiner wrote:
>>
>> Apple puts good audio hardware in their laptops.  I can get 14ms of
>> latency on Mac OS X with Pd without really trying (I just set it to
>> 14ms).  I can get down to 11ms if I don't mind clicks when I  
>> operate the
>> menus and switch to other applications.
>
> as always when it comes to latency and people tell numbers, i have to
> ask my question: have you measured this? how? or was it just  
> "putting a
> number somewhere and assuming that it's the real latency"?
> how much load do your settings allow?
>
> mg-asdr
> IOhannes
>
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