[PD] crossfade of complete sample buffer

marius schebella marius.schebella at chello.at
Mon Dec 2 10:34:50 CET 2002

(bufferA * n) + (bufferB * (1-n))
n=a value decreasing from 1 to 0.
i don't know if the result will please you... because this will still sound
like a kind of "traditional" crossfade.

----- Original Message -----
From: "Orm Finnendahl" <finnendahl at folkwang-hochschule.de>
To: <pd-list at iem.kug.ac.at>
Sent: Sunday, December 01, 2002 9:09 PM
Subject: [PD] crossfade of complete sample buffer

> Hi everyone,
> before hacking it up myself I thought, I'd ask if anything like that
> already is realized or could be implemented in an abstraction using
> standard pd objects (I could imagine it's somehow possible, but
> couldn't find a way).
> I need to gradually transform the contents of a sample buffer from one
> sound to another, by crossfading all of the samples from sound A
> to sound B in a given time (say 2000 msecs). What I look for is an in
> place change of the sample values in the array. The lengths of the two
> sample buffers of course are considered equal.
> Not to get me wrong: the cross fade doesn't work from left to write in
> the sample buffer, but all values of the buffer are crossfaded by
> crossfading the samples from sound A at all the indexes with the
> respective values of sound B "at once", using subsequent "steps",
> which are completely independent of the sample frequency to perform
> the cross fade, much like a line object.
> Any ideas?
> --
> Orm
> _______________________________________________
> PD-list mailing list
> PD-list at iem.kug.ac.at
> http://iem.kug.ac.at/cgi-bin/mailman/listinfo/pd-list

More information about the Pd-list mailing list