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
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-$f3)) ]
|
|
[(floatatom)(
|
<route connection into 3rd outlet of expr>
On Wed, Jan 18, 2017 at 11:18 AM, Ali Momeni batchku@gmail.com wrote:
Hello all,
Can someone point me to an existing abstraction/external that behaves somewhat like Max's "slide" object? Specifically, i'm looking for a way to smooth (low-pass) floats (control rate) but with the ability to smooth out increasing and decreasing values differently.
Thank you!
-ali
Pd-list@lists.iem.at mailing list UNSUBSCRIBE and account-management -> https://lists.puredata.info/ listinfo/pd-list
Thanks daniel; i'm aware of this technique. Im specifically looking for a smoothing method that allows variable amounts of smoothing, and also implements a way to have increasing values be smoothed differently than decreasing values.
Any thoughts on that?
-ali
On Wed, Jan 18, 2017 at 3:45 PM, Daniel Iglesia daniel.iglesia@gmail.com wrote:
Grabbing the previous incoming value, and one [expr] should do it, to implement a first order filter
y[i] := y[i-1] + α * (x[i] - y[i-1])
as
[expr if($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-$f3)) ] | | [(floatatom)( | <route connection into 3rd outlet of expr>On Wed, Jan 18, 2017 at 11:18 AM, Ali Momeni batchku@gmail.com wrote:
Hello all,
Can someone point me to an existing abstraction/external that behaves somewhat like Max's "slide" object? Specifically, i'm looking for a way to smooth (low-pass) floats (control rate) but with the ability to smooth out increasing and decreasing values differently.
Thank you!
-ali
Pd-list@lists.iem.at mailing list UNSUBSCRIBE and account-management -> https://lists.puredata.info/li stinfo/pd-list
That expr handles increasing vs decreasing separately, with two separate smoothing coefficients (the .1 and .2). Break them out into additional inputs to [expr] and those can be changed dynamically as well.
On Wed, Jan 18, 2017 at 12:52 PM, Ali Momeni batchku@gmail.com wrote:
Thanks daniel; i'm aware of this technique. Im specifically looking for a smoothing method that allows variable amounts of smoothing, and also implements a way to have increasing values be smoothed differently than decreasing values.
Any thoughts on that?
-ali
On Wed, Jan 18, 2017 at 3:45 PM, Daniel Iglesia daniel.iglesia@gmail.com wrote:
Grabbing the previous incoming value, and one [expr] should do it, to implement a first order filter
y[i] := y[i-1] + α * (x[i] - y[i-1])
as
[expr if($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-$f3)) ] | | [(floatatom)( | <route connection into 3rd outlet of expr>On Wed, Jan 18, 2017 at 11:18 AM, Ali Momeni batchku@gmail.com wrote:
Hello all,
Can someone point me to an existing abstraction/external that behaves somewhat like Max's "slide" object? Specifically, i'm looking for a way to smooth (low-pass) floats (control rate) but with the ability to smooth out increasing and decreasing values differently.
Thank you!
-ali
Pd-list@lists.iem.at mailing list UNSUBSCRIBE and account-management -> https://lists.puredata.info/li stinfo/pd-list
Thanks daniel! Excuse me, I missed that in there. This is great.
-ali
On Wed, Jan 18, 2017 at 4:10 PM, Daniel Iglesia daniel.iglesia@gmail.com wrote:
That expr handles increasing vs decreasing separately, with two separate smoothing coefficients (the .1 and .2). Break them out into additional inputs to [expr] and those can be changed dynamically as well.
On Wed, Jan 18, 2017 at 12:52 PM, Ali Momeni batchku@gmail.com wrote:
Thanks daniel; i'm aware of this technique. Im specifically looking for a smoothing method that allows variable amounts of smoothing, and also implements a way to have increasing values be smoothed differently than decreasing values.
Any thoughts on that?
-ali
On Wed, Jan 18, 2017 at 3:45 PM, Daniel Iglesia <daniel.iglesia@gmail.com
wrote:
Grabbing the previous incoming value, and one [expr] should do it, to implement a first order filter
y[i] := y[i-1] + α * (x[i] - y[i-1])
as
[expr if($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@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
Pd-list@lists.iem.at mailing list UNSUBSCRIBE and account-management -> https://lists.puredata.info/li stinfo/pd-list
-
Ali Momeni -
Daniel Iglesia