[PD] pitch extraction help

2008-05-09 Thread cristiano listas
hello list,

i'm trying to extract pitch from audio signal (sampled or streamed, but the
extraction has to be in real-time).

In this patch i tried to filter the amplitude of the signal before send to
fiddle~. In fact, amplitudes outside of 83 - 86 register will cut
the fiddle~~recognition with the message [auto 0].

Is not working properly. Ideas?

Thank's


pitch extractor.pd
Description: Binary data
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Re: [PD] pattern extraction/recognition

2008-04-27 Thread cristiano listas
thanks all for reply,


the best performance I ever heard using musical pattern recognition was by
 the trombone player george lewis
 http://en.wikipedia.org/wiki/George_Lewis_(trombonist)http://en.wikipedia.org/wiki/George_Lewis_%28trombonist%29
 he uses a max patch called voyager. I have no idea how it works, maybe you
 find some documentation online. he worked on it for several years. and it
 was extremely good.
 marius.


thanks a lot, in this
paperhttp://muse.jhu.edu/demo/leonardo_music_journal/v010/10.1lewis.html,George
talk about the voyager programming in the FORMULA  language, some
interesting insights, thinking buy the cd
http://www.amazon.com/gp/redirect.html%3FASIN=B3JAI9%26tag=squidoox14-20%26lcode=xm2%26cID=2025%26ccmID=165953%26location=/o/ASIN/B3JAI9%253FSubscriptionId=19BAZMZQFZJ6G2QYGCG2


Have begun to look Nick Collins work (bbcut), that looks to be very good
with supercollider.

Looks that legato notes are a problem with fiddle~.  Maybe  a output mix of
fiddle~ and fft~? just guessing.


I think that the length of the pattern to be recognized should be variable,
but following the common sense concept of motif: 3 to 10 notes.

The motif is a rythmic/melodic pattern - i will think rythm and melody
separately, but in some moment they will interact i still don't figure out
how.

Aubio semms great, i will try a binary that i found
herehttp://ftp.man.poznan.pl/pub/linux/debian/debian/pool/main/a/aubio/pd-aubio_0.3.2-2+b1_i386.deb.

Looks like i have a lot of work to do.

Thanks
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[PD] pattern extraction/recognition

2008-04-25 Thread cristiano listas
Hi, i'm looking for a way to make a patch that recognizes musical motifs
from a flute player in real-time.

Maybe using ann externals to first training with the player, or with some
recorded material.

There is other ways to do that?

Someone is doing something similar on Pd?

Pd is the best choice to do that work?

Sorry for many questions.
Thanks for atention.

cris
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