[PD] timing question
Derek Holzer
derek at umatic.nl
Mon Dec 17 15:55:28 CET 2007
Thanks, Zen-Master Claudius. Your quantum revelations still leave me
wondering, however, what is the minimum time between two events which
can be scheduled?
I teach my students that the reason you can't send audio to "message"
(i.e. non-audio) objects is that "message" objects run slower. While
this may not be "logically" correct to many of the hackers that live on
this list, it is a convenient way to explain the difference to artists
just beginning in this world. Block size was the technical answer I gave.
Now that I know this is false, I need a new explanation. Plus I'd like
to know what the limits of message processing speed are. In "real time",
please.
best,
d.
Claude Heiland-Allen wrote:
> Derek Holzer wrote:
>> Hi all,
>>
>> Charles Henry wrote:
>>> On Dec 17, 2007 3:03 AM, Frank Barknecht <fbar at footils.org> wrote:
>>>> Hallo,
>>>> Charles Henry hat gesagt: // Charles Henry wrote:
>>>>
>>>>> [metro 1] creates a bang each millisecond, approximately. The message
>>>>> rate is constrained by the block size, so you would want to put [metro
>>>>> 1] inside of a subpatch with [block~ 1] for best time resolution.
>>>> That's not true. Message rate is not related to the dsp vector size.
>>> My mistake. I thought messages had to run in between dsp blocks.
>>
>> Someone please refresh/adjust my memory... what IS the message rate in
>> PD? I also thought it was related to block size all these years. And
>> how can it be changed if needed?
>
> There is no fixed rate, it's event-based with continuous time (or as
> continuous as floating point numbers gets you). But - it works with
> "logical" time, any relationship to "real" time is purely a coincidence.
>
>
> Claude
--
derek holzer ::: http://www.umatic.nl ::: http://blog.myspace.com/macumbista
---Oblique Strategy # 81:
"Go to an extreme, move back to a more comfortable place"
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