[PD] maximum of Oscillators

thomas gorbach blackinch at t0.or.at
Fri Jan 3 13:32:43 CET 2003


pix wrote:

>oh, you mean a test to see how many osc~ objects pd can run
>simultaneously?
>
>depends on your cpu. you could build an nqpoly (or clone) compatible
>object, so you could easily create many osc~'s and see what the cpu usage
>is like.
>
What you mean with nqpoly or clone.
Are there existing objects like that ?
In witch Lib ?

greetns

>
>a note, with nqpoly, you should turn off audio computation while modifying
>parameters like the number of instances, as it speeds up the garbage
>collection (?) and recreation of the objects.
>
>pix.
>
>On Fri, 03 Jan 2003 10:23:34 +0100
>thomas gorbach <blackinch at t0.or.at> wrote:
>
>>David Sabine wrote:
>>
>>>Hello,
>>>
>>>It appears that oscillators can perform frequencies to 999999 hz and
>>>then above 1000000 hz - but the accuracy of the wave forms at that
>>>frequency are questionable as PD converts the numbers to 1.0000+e6 etc.
>>>Certainly, the
>>>resolution of waves above 999999 hz will be diminished?
>>>
>>>This is obviously far beyond the human ear's audio range.
>>>
>>>Also, depending on your sample rate, your audio hardware might be
>>>incapable of producing frequencies above a certain range.  For example,
>>>the highest frequency that a 44.100 khz sample rate can achieve is
>>>22.05 khz. Frequencies higher than that are either snipped entirely by
>>>your audio hardware or appear as very low frequency artefacts.
>>>
>>>Hardware that is capable of sampling audio at 192 khz have a maximum
>>>frequency output of 96000 hz.
>>>
>>>Regards,
>>>Dave Sabine
>>>
>>>
>>>
>>>-----Original Message-----
>>>From: pd-list-admin at iem.kug.ac.at [mailto:pd-list-admin at iem.kug.ac.at]
>>>On Behalf Of thomas gorbach
>>>Sent: January 3, 2003 2:35 AM
>>>To: PD-list at iem.kug.ac.at
>>>Subject: [PD] maximum of Oscillators
>>>
>>>hello List
>>>
>>>1. question
>>>is there someone who tried the maximum of oscillators pd can perform ?
>>>
>>>2. question:
>>>if i open a patch with an oscil i get this text.
>>>
>>>#N canvas 16 64 314 182 10;
>>>#X obj 66 54 osc~;
>>>#X obj 109 54 osc~;
>>>#X obj 66 86 *~ 0.1;
>>>#X obj 66 121 dac~;
>>>#X floatatom 66 19 5 0 0 0 - - -;
>>>#X obj 109 33 + 5;
>>>#X connect 0 0 2 0;
>>>#X connect 1 0 2 0;
>>>#X connect 2 0 3 0;
>>>#X connect 2 0 3 1;
>>>#X connect 4 0 0 0;
>>>#X connect 4 0 5 1;
>>>#X connect 5 0 1 0;
>>>
>>>is there any systematic in the numbering of the boxes ?
>>>
>>>Greetns
>>>TOM
>>>
>>>
>>>
>>>_______________________________________________
>>>PD-list mailing list
>>>PD-list at iem.kug.ac.at
>>>http://iem.kug.ac.at/cgi-bin/mailman/listinfo/pd-list
>>>
>>>
>>>
>>Yes this i know.
>>But i'm looking for the amount of oscil pd can produce.
>>
>>greetns
>>TOM
>>







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