[PD] low pass filter for floats
Hans-Christoph Steiner
hans at eds.org
Fri Oct 10 17:50:36 CEST 2008
On Oct 9, 2008, at 5:33 AM, Tim Blechmann wrote:
>> Sorry if this might seem ignorant, but would it be an idea to make
>> [lop], [hip] and so on objects for convenience sake to come with the
>> distribution that would go alongside the names the audio objects?
>> This
>> might only be me being used to the supercollider syntax of adding
>> a .ar
>> (for audio, or ~) or .kr (for control, float) after the object/class
>> name.
>
> i don't think, it is feasible to write straight-forward objects for
> message filtering ...
>
> pd has no notion of control rate, as supercollider or csound have ...
> messages can be used to emulate control rate signals, however there
> is no
> guarantee that control rate events occur monotonic, nor a way to
> figure
> out its sampling rate
>
> by downsampling subpatches you can probably get close to the
> semantics of
> control-rate in other systems, although it might lack some expressive
> power
>
> best, tim
I think [lop] and [hip] could be handy. As for the control rate
issue, the mapping library has [resample] for this purpose. If you
want to ensure a steady message rate, using something like [resample
100].
.hc
>
> --
> tim at klingt.org
> http://tim.klingt.org
>
> Your mind will answer most questions if you learn to relax and wait
> for the answer.
> William S. Burroughs
>
>
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