On Mon, 21 Feb 2011, Ed Kelly wrote:
What I am looking for is a mathematical way to calculate the length of a
transposition envelope relative to its effect on a finite-length sample,
and so to derive a length for the envelope that will allow the envelope
and the sample to play out over the sam
On Wed, 23 Feb 2011, Andy Farnell wrote:
If you have a samplewise integrator
That's called [rpole~] in pd.
then a small increment value 1/samplerate , lets call it I, will cause
the output, let's call that O, to reach a value of 1 in 1 second of
time.
Try this attachment. Press the bang m
As Matt points out, it's not trivial.
Your initial instinct was best IMHO, to
use the integral (running accumulation)
of normalised pitch.
If you have a samplewise integrator then
a small increment value 1/samplerate , lets call
it I, will cause the output, let's call that O, to
reach a value
I think it would help me to think of the problem if you could say what
you wanted the envelope itself to look/sound like. Is this a
continuous glissando (in frequency? pitch?) from low to high? Does it
go up then down then up again? Or any of these possibilities? Does it
matter more what transposit
le at http://sharktracks.co.uk/puredata
From: Andrew Faraday
To: morph_2...@yahoo.co.uk; pd-list@iem.at
Sent: Sat, 12 February, 2011 10:07:26
Subject: RE: [PD] Pitch envelope
What I would do is use your typical sound playback algorithm, ([phasor~]
feeding [tab
nd, as I say, hard to scale as semiquavers.Andrew
> Date: Sat, 12 Feb 2011 00:00:57 +
> From: morph_2...@yahoo.co.uk
> To: pd-list@iem.at
> Subject: [PD] Pitch envelope
>
> So...
>
> A sample has duration (x)
>
> A breakpoint envelope has pitch transposition from -60 to +60 se
On Sat, 12 Feb 2011, Ed Kelly wrote:
A breakpoint envelope has pitch transposition from -60 to +60 semitones.
How do I work out what that would mean for the duration - i.e. how do I make it
so the whole pitch envelope happen within the duration of the sample?
Make the envelope sync itself with
So...
A sample has duration (x)
A breakpoint envelope has pitch transposition from -60 to +60 semitones.
How do I work out what that would mean for the duration - i.e. how do I make it
so the whole pitch envelope happen within the duration of the sample?
I'm not a mathematician, and have been
