Re: Microsoft waveform matching
Re: Microsoft waveform matching
- Subject: Re: Microsoft waveform matching
- From: Richard Dobson <email@hidden>
- Date: Tue, 17 Feb 2009 17:42:12 +0000
[meant to respond to the list]
Jens Alfke wrote:
Richard,
Isn't it just standard MPEG7 Content Description?
I don't know what that is.
Well, Google is Your Friend. Mpeg7 defines a set of 17 low-level audio
descriptors (centroids, etc) based on time-frequency analysis. A basic
analyse->extract_descriptors->compare_against_database system.
Look here (for example) :
http://www.chiariglione.org/mpeg/standards/mpeg-7/mpeg-7.htm
and scroll down to section 3.3
It sort of relies on the easy recognisability of "songs" - so it will
(probably) identify an epic by Britney S, but probably not an epic by
Mahler. Anything without a "beat" will be classified as "classical".
Richard Dobson
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