[music-dsp] Anyone can tell me some thing about pitch dectector?

[Iain]

There's some useful research on automatic transcription by a Finn (who's
name, I'm afraid doesn't stick in my WASP memory).

The essence is that he isolates fundamentals through the prime harmonics
(that is if a set of frequencies are relatively prime then the root is
probably the fundamental).

You could use a phase vocoder and this approach to get very good results.

Probably complete overkill mind you!

Iain
-----Original Message-----
From: music-dsp-bounces at ceait.calarts.edu
[mailto:music-dsp-bounces at ceait.calarts.edu] On Behalf Of David Cournapeau
Sent: 24 February 2005 10:19
To: music-dsp
Subject: Re: [music-dsp] Anyone can tell me some thing about pitch
dectector?

yin si wrote:

>I'm doing research on a Query-by-Humming system, and I have
>implemented several classic pitch tracking algorithms such as
>Autocorrelation, Harmonic Product Spectrum in Matlab, but no one
>has a good result, so anyone can tell me some tips or references I
>should read to get a good result ? thanks for any replay
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This is a difficult problem (fundamental pitch tracking).

For voice signal, one recent algorithm which at least looks nice on 
paper is developped by S. Basu in in PhD thesis about conversationnal 
scene analysis:

http://sbasu.fastmail.fm/papers/thesis.pdf

Cheers,

David
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