[PD] slicing samples

jared microcosm11 at msn.com
Tue Feb 13 04:15:27 CET 2007

Thanks Chuckk.  I'm not sure if the wave table way will result in the
sounds I'm looking for.  Regardless, that is an interesting thought.
One which could possibly lead to some wonderful sounds!



-----Original Message-----
From: Chuckk Hubbard [mailto:badmuthahubbard at gmail.com] 
Sent: Tuesday, February 13, 2007 2:37 AM
To: jared; pd-list at iem.at
Subject: Re: [PD] slicing samples

I have never heard of anything like that with Pd.  Pd itself is pretty
low-level with audio, but someone has probably written an external
object for that at some point.
It sounds like something that would be pretty complicated in pure Pd.
First idea that comes to my mind would be to leave the sample intact
in a table, and store a separate array of numbers telling where in
that table the transients occur.  The members of the array might be
0: 0
1: 870
2: 1589
3: 1800
Then instead of making smaller tables with parts of the sample, you
just have each playback object reference the array first for 2
indexes, and play from one index to the other in the wave table.

Pure Data will let you save a separate pd file that does the lookup
and then create any number of instances of it in your main patch.  I
don't know how efficient this would be for slicing samples; it would
allow overlapping slices, basically.  I tend to miss the simpler and
more obvious ways of doing things, so there's probably a better


On 2/12/07, jared <microcosm11 at msn.com> wrote:
> Hello all,
> First post!  Glad to be here.
> I'm in the middle of installing all of the PD goodies.  I'll have some
> questions concerning installations and such...please bare with me! :-)
> First off, I'm really interested in 'slicing' up samples with PD
> (beat/transient detection) and rearranging them....
> Is there an object or abstraction that I should be using to achieve
> this?  Does anyone have any patches that they'd like to share relating
> to this?
> Thanks!
> Jared
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