[PD] smoothing numbers: something like Max's "slide" object?
Ali Momeni
batchku at gmail.com
Wed Jan 18 21:52:42 CET 2017
Thanks daniel; i'm aware of this technique.
Im specifically looking for a smoothing method that allows variable amounts
of smoothing, and also implements a way to have increasing values be
smoothed differently than decreasing values.
Any thoughts on that?
-ali
On Wed, Jan 18, 2017 at 3:45 PM, Daniel Iglesia <daniel.iglesia at gmail.com>
wrote:
> Grabbing the previous incoming value, and one [expr] should do it, to
> implement a first order filter
>
> y[i] := y[i-1] + α * (x[i] - y[i-1])
>
> as
>
> [expr if($f1>$f2, $f3+.1*($f1-$f3), $f3+.2*($f1-$f3))]
>
> where $f1 is the incoming number, $f2 is the previous incoming number, the
> output of this expr is routed into the second inlet as $f3.
> .1 is the smoothing coeff for increasing, .2 is the smoothing coeff for
> decreasing.
>
> So:
>
> [(floatatom)(
> |
> [t f f b]
> | \ /
> | \/
> | /\
> | / \
> | [float]
> | |
> | |
> | |
> [expr if($f1>$f2, $f3+.1*($f1-$f3), $f3+.2*($f1-$f3)) ]
> |
> |
> [(floatatom)(
> |
> <route connection into 3rd outlet of expr>
>
>
> On Wed, Jan 18, 2017 at 11:18 AM, Ali Momeni <batchku at gmail.com> wrote:
>
>> Hello all,
>>
>> Can someone point me to an existing abstraction/external that behaves
>> somewhat like Max's "slide" object? Specifically, i'm looking for a way to
>> smooth (low-pass) floats (control rate) but with the ability to smooth out
>> increasing and decreasing values differently.
>>
>> Thank you!
>>
>> -ali
>>
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>>
>
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