[PD] binweise delay

[Mirko Maier]

alright,
my mistake was that i didn't use integers as multiples of the binsize for reading out the buffers. now it's working fine.

a final question: having 2 buffers (for real & imag) sized 10000 milliseconds, i can have a maximum delay of 2496 ms. is that because of 4 overlapping windows?

mirko

-------- Original-Nachricht --------
Datum: Mon, 4 Jun 2007 22:59:08 +0300
Von: "ugur guney" <ugurguney at gmail.com>
An: "Mirko Maier" <mirkom at gmx.de>
Betreff: Re: [PD] binweise delay

> http://crca.ucsd.edu/~msp/techniques/latest/book-html/node179.html
> # You can take a look at this page for help in FFT.
> # How did you impelement the buffered analysis?
> # I think something like this could work: If the number of bins is 2*N,
> prepare N tables with size N samples. 1st table has one in 1st sample and
> zero everywhere. Similarly n'th table has 1 in n'th sample and zero in
> other
> samples. This tables will be used to pick up n'th bin from the mixed
> analysis.
> # Then prepare 2*N [*~] objects and multiply real and imag output of
> [rfft~]
> with [tabreceive~ preparedTableN]. This way every bin will be seperated,
> every pair has the amplitude and phase information of only one bin.
> # Then apply delay's to every pair and sum all delayed real and imaginary
> parts seperately. Finally put these two signals to [rifft~]
> # If I doesn't have two final exams this week, I'll try to implement what
> I've said. Good days!
> -ugur guney-
> 
> 
> On 6/4/07, Mirko Maier <mirkom at gmx.de> wrote:
> >
> > hi list,
> > is there a possibility for binwise spectral delay with fft? i tried to
> > write the analysis in buffers and read it time-variably out before
> > re-synthesizing, but that didn't work (in fact buffer writing / reading
> the
> > analysis did not work at all).
> >
> > mirko
> >
> > --
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