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Re: Intermediate representation for music analysis

To: AUDITORY@xxxxxxxxxxxxxxx
Subject: Re: Intermediate representation for music analysis
From: Dan Ellis <dpwe@xxxxxxxxxxxxxxx>
Date: Wed, 19 Jul 2006 15:35:14 -0400
Comments: To: ilyas@POST.TAU.AC.IL
Delivery-date: Wed Jul 19 15:51:10 2006
In-reply-to: Message from Ilya Sedelnikov <ilyas@POST.TAU.AC.IL> of "Wed, 19 Jul 2006 21:45:03 +0300." <1153334703.44be7dafe8225@webmail.tau.ac.il>
Reply-to: Dan Ellis <dpwe@xxxxxxxxxxxxxxx>
Sender: AUDITORY Research in Auditory Perception <AUDITORY@xxxxxxxxxxxxxxx>

>>   Could you give me some references to people/articles that make use of this
>>  technique ? In fact, this is exactly the technique I use to improve the
>>  frequency resolution of the constant-Q filterbank.

I have an implementation in Matlab, "ifgram.m", which calculates a
spectrogram including an instantaneous frequency estimate for each bin.
You can download it from 
http://www.ee.columbia.edu/~dpwe/resources/matlab/sinemodel/
.. search for ifgram.

This idea recurs quite a lot.  It's in Flanagan & Golden's original 1966
Phase Vocoder paper:
http://www.ee.columbia.edu/~dpwe/e6820/papers/FlanG66.pdf 
also F. J. Charpentier from ICASSP 86:
http://www.ee.columbia.edu/~dpwe/papers/Charp86-pitchphase.pdf 
and developed more recently by Abe and co-workers:
http://citeseer.ist.psu.edu/context/1301499/0

  DAn.

References:
- Re: Intermediate representation for music analysis
  - From: Ilya Sedelnikov

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