Stephan Elliot Perez <
dreamoftheshoreofanotherworld@gmail.com> wrote:
> Thanks for your response. I tried to apply the branching principal using
> the equation from the [exact-ead~] by having the envelope go to 1 and then
> to 2 instead of 0, using min 1 and max 1 to create a branch, using an
> expression to convert the ascending numbers over 1 into descending numbers
> under 1, and then jumping to 0. I think the problem is that, during the
> switches, two 1s are sent at the same time, leading to a 2 (as seen in the
> graph), where I actually need a 0...
>
> -Stephan
>
> On Mon, May 30, 2011 at 8:34 PM, Andy Farnell <
padawan12@obiwannabe.co.uk>wrote:
>
> >
> >
> >
> > You might be able to easily get that behaviour by
> > quickly editing the example I gave you.
> >
> > The maths is really geometry.
> >
> > There are a few things that can be done as time domain
> > transforms when thinking about envelopes and suchlike
> > in this way.
> >
> > 1) Flip it around zero with [*~ -1]
> > 2) Invert arithmetically wrt 1.0 using [sig~ 1][-~]
> > 3) Get the [min~] or the [max~] wrt another value
> > 4) Clamp at a value using [clip~] ... is special case of (3)
> > 5) Shift by an amount using [-~] or [+~]
> > 6) Scale by some factor with [*~]
> >
> > IIRC the idiom for a two stage envelope like that is
> > to use [min~]/[max~] to create a split point and treat
> > each of the two branches differently (you can do piecewise
> > waveform construction the same way).
> >
> > If you want time symmetry then have the [vline~] go to 1.0
> > and back to [0.0] and just use one of the branches.
> >
> >
> >
> > On Mon, 30 May 2011 18:45:55 +0200
> > Stephan Elliot Perez <
dreamoftheshoreofanotherworld@gmail.com> wrote:
> >
> > > Greetings,
> > > Thank you for your responses. I tried your suggestion, hardoff, and
> > > the result is the attached [ead-reverse~]. Unfortunately, the expression
> > > behaves differently with this [vline~]-construction as with the
> > [phasor~].
> > > Here, if 1 is entered into the right input of [expr~], the result is an
> > > envelope whose steepness becomes exponentially smaller while ascending
> > and
> > > exponentially greater while descending (if near 0, the opposite form is
> > > produced and values between 1 and 0 produce a divided, confused form). I
> > > however wish to produce an envelope that becomes exponentially steeper
> > both
> > > ascending and descending.
> > > My problem with this [expr~] as well as with Mr. Farnell's patches
> > is
> > > that I do not quite understand the math behind them. Any ideas?
> > >
> > > Best regards,
> > > Stephan Elliot Perez
> > >
> > >
> > > On Fri, May 27, 2011 at 5:54 PM, hard off <
hard.off@gmail.com> wrote:
> > >
> > > > instead of the [phaser~], send a [line~] (or [vline~]) signal.
> > > >
> > > > for example:
> > > >
> > > > [1, 0.5 500, 0 1000 500(
> > > > |
> > > > [vline~]
> > > >
> > > >
> > > > like most of my patches, i don't think i originally made that one,
> > someone
> > > > else posted it, and i just copied. ;)
> > > > must have been a long time ago though, cos i barely remember it.
> > > >
> > > >
> > > >
> > > >
> > > > On Sat, May 28, 2011 at 12:24 AM, Stephan Elliot Perez <
> > > >
dreamoftheshoreofanotherworld@gmail.com> wrote:
> > > >
> > > >> Greetings,
> > > >> I wish to produce a wave form with the opposite form of the
> > normal
> > > >> ead~ wave (the curves become exponentially steeper instead of
> > flatter),
> > > >> which I can achieve by entering a negative number into the phasor in
> > hard
> > > >> off's exact-ead~ patch, which I downloaded from the archive. However,
> > I
> > > >> still want to be able to independently change the length of the
> > ascent,
> > > >> decline, and distance between waves as is possible with ead~. Does
> > anyone
> > > >> know how I could do this, or possibly have access to an
> > abstraction-version
> > > >> of ead~?
> > > >>
> > > >> Best regards,
> > > >> Stephan
> > > >>
> > > >>
> > > >>
> > > >> _______________________________________________
> > > >>
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> > > >>
> > > >>
> > > >
> >
> >
> > --
> > Andy Farnell <
padawan12@obiwannabe.co.uk>
> >
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