Erik de Castro Lopo wrote:
>On Wed, 19 Jan 2005 13:56:59 +0900
>David Cournapeau <cournape@email-addr-hidden> wrote:
>
>
>
>>It is way more difficult than that. Finding the pitch of a signal, even
>>monophonic, is *very* tricky, for real instruments.
>>
>>
>
>Accuracy, speed, reliability; pick one and you'd be lucky to get 50%
>of what you want :-).
>
>Erik
>
>
If you are willing to give up on speed (I mean really giving up on
speed, ie being ready to wait for several seconds for one second of
sound on a modern computer), matching pursuit with harmonic atoms works
really well from my experience. I could find the different notes of one
piano chord with a "good" accuracy.
See a description here
http://www.irisa.fr/metiss/gribonval/Papers/2003/IEEESP/harmonicMP.pdf
David
Received on Wed Jan 19 12:15:04 2005
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