Re: [PD] round off the corners of a [line] movement?

[cyrille henry]

...and I forget the iir object (vanilla abstraction) in the pure_mapping lib...

cheers


Le 27/09/2023 à 16:18, cyrille henry a écrit :

ho,
and you can cascade 2 line, in order to smooth the 1st one, just like this 
example.

But the best is probably to use line~ with lop~ and control the glissandi in 
audio...

cheers


Le 26/09/2023 à 20:06, Peter P. a écrit :

Hi list,

often when I use [line¨] to make frequency glissandi, the point when the
ramp starts, and the point where it ends, appear as very sudden events
to my ears. I am wondering if there is an easy way to gradually speed up
the ramp when it starts, and slow it down before it reaches its target
value?
The only way I can think of so far is to model such a behavior with two
masses connected by an elastic link using the pmpd library. But a
vanilla way would be very interesting too!

Thanks in advance for all ideas and pointers!
cheersz, Peter



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Re: [PD] round off the corners of a [line] movement?

[cyrille henry]

Le 27/09/2023 à 17:58, Antoine Rousseau a écrit :

I've always loved [line3] :-)

thanks!


[line3~] would be cool too, by the way.

you can use a more efficient hack :

[line3]
 |
[$1 20<
 |
[line~]



but lop~ is also working nicely for very low frequency.
see attachment

cheers






Antoine

Le mer. 27 sept. 2023 à 16:12, cyrille henry mailto:c...@chnry.net>> a écrit :

hello,

it's not vanilla, but line3 is using a 3rd degree polynomial to allow 
continuity of the tangents. It is also working if you trigger a new line before 
the end of the current.
equation is not very complex and can be ported to vanilla, but I was lazy...
You can find it in nusmuk_somthing in deken

cheers
c



Le 26/09/2023 à 20:06, Peter P. a écrit :
 > Hi list,
 >
 > often when I use [line¨] to make frequency glissandi, the point when the
 > ramp starts, and the point where it ends, appear as very sudden events
 > to my ears. I am wondering if there is an easy way to gradually speed up
 > the ramp when it starts, and slow it down before it reaches its target
 > value?
 > The only way I can think of so far is to model such a behavior with two
 > masses connected by an elastic link using the pmpd library. But a
 > vanilla way would be very interesting too!
 >
 > Thanks in advance for all ideas and pointers!
 > cheersz, Peter
 >
 >
 >
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Re: [PD] round off the corners of a [line] movement?

[Antoine Rousseau]

I've always loved [line3] :-)
[line3~] would be cool too, by the way.

Antoine

Le mer. 27 sept. 2023 à 16:12, cyrille henry  a écrit :

> hello,
>
> it's not vanilla, but line3 is using a 3rd degree polynomial to allow
> continuity of the tangents. It is also working if you trigger a new line
> before the end of the current.
> equation is not very complex and can be ported to vanilla, but I was
> lazy...
> You can find it in nusmuk_somthing in deken
>
> cheers
> c
>
>
>
> Le 26/09/2023 à 20:06, Peter P. a écrit :
> > Hi list,
> >
> > often when I use [line¨] to make frequency glissandi, the point when the
> > ramp starts, and the point where it ends, appear as very sudden events
> > to my ears. I am wondering if there is an easy way to gradually speed up
> > the ramp when it starts, and slow it down before it reaches its target
> > value?
> > The only way I can think of so far is to model such a behavior with two
> > masses connected by an elastic link using the pmpd library. But a
> > vanilla way would be very interesting too!
> >
> > Thanks in advance for all ideas and pointers!
> > cheersz, Peter
> >
> >
> >
> > ___
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> https://lists.puredata.info/listinfo/pd-list
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>
>
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Re: [PD] round off the corners of a [line] movement?

[Christof Ressi]

Now I am not sure if [line"] was supposed to be [line~]... Just in case, 
here's a signal version called [cline~].


Christof

On 27.09.2023 14:51, Christof Ressi wrote:
[line] outputs a linear ramp, so you just need to apply a transfer 
function to get the behavior you want. For example, if you want a 
gradual start and gradual, you could use the second half of a cosine 
wave.


I have an abstraction called [cline] that supports various shapes (see 
attachment).


Christof

On 26.09.2023 20:06, Peter P. wrote:

Hi list,

often when I use [line¨] to make frequency glissandi, the point when the
ramp starts, and the point where it ends, appear as very sudden events
to my ears. I am wondering if there is an easy way to gradually speed up
the ramp when it starts, and slow it down before it reaches its target
value?
The only way I can think of so far is to model such a behavior with two
masses connected by an elastic link using the pmpd library. But a
vanilla way would be very interesting too!

Thanks in advance for all ideas and pointers!
cheersz, Peter



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Re: [PD] round off the corners of a [line] movement?

[cyrille henry]

ho,
and you can cascade 2 line, in order to smooth the 1st one, just like this 
example.

But the best is probably to use line~ with lop~ and control the glissandi in 
audio...

cheers


Le 26/09/2023 à 20:06, Peter P. a écrit :

Hi list,

often when I use [line¨] to make frequency glissandi, the point when the
ramp starts, and the point where it ends, appear as very sudden events
to my ears. I am wondering if there is an easy way to gradually speed up
the ramp when it starts, and slow it down before it reaches its target
value?
The only way I can think of so far is to model such a behavior with two
masses connected by an elastic link using the pmpd library. But a
vanilla way would be very interesting too!

Thanks in advance for all ideas and pointers!
cheersz, Peter



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Re: [PD] round off the corners of a [line] movement?

[cyrille henry]

hello,

it's not vanilla, but line3 is using a 3rd degree polynomial to allow 
continuity of the tangents. It is also working if you trigger a new line before 
the end of the current.
equation is not very complex and can be ported to vanilla, but I was lazy...
You can find it in nusmuk_somthing in deken

cheers
c



Le 26/09/2023 à 20:06, Peter P. a écrit :

Hi list,

often when I use [line¨] to make frequency glissandi, the point when the
ramp starts, and the point where it ends, appear as very sudden events
to my ears. I am wondering if there is an easy way to gradually speed up
the ramp when it starts, and slow it down before it reaches its target
value?
The only way I can think of so far is to model such a behavior with two
masses connected by an elastic link using the pmpd library. But a
vanilla way would be very interesting too!

Thanks in advance for all ideas and pointers!
cheersz, Peter



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Re: [PD] round off the corners of a [line] movement?

[Christof Ressi]

[line] outputs a linear ramp, so you just need to apply a transfer 
function to get the behavior you want. For example, if you want a 
gradual start and gradual, you could use the second half of a cosine wave.


I have an abstraction called [cline] that supports various shapes (see 
attachment).


Christof

On 26.09.2023 20:06, Peter P. wrote:

Hi list,

often when I use [line¨] to make frequency glissandi, the point when the
ramp starts, and the point where it ends, appear as very sudden events
to my ears. I am wondering if there is an easy way to gradually speed up
the ramp when it starts, and slow it down before it reaches its target
value?
The only way I can think of so far is to model such a behavior with two
masses connected by an elastic link using the pmpd library. But a
vanilla way would be very interesting too!

Thanks in advance for all ideas and pointers!
cheersz, Peter



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[PD] round off the corners of a [line] movement?

[Peter P.]

Hi list,

often when I use [line¨] to make frequency glissandi, the point when the
ramp starts, and the point where it ends, appear as very sudden events
to my ears. I am wondering if there is an easy way to gradually speed up
the ramp when it starts, and slow it down before it reaches its target
value?
The only way I can think of so far is to model such a behavior with two
masses connected by an elastic link using the pmpd library. But a
vanilla way would be very interesting too!

Thanks in advance for all ideas and pointers!
cheersz, Peter



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