19 Jan
2005
19 Jan
'05
3:03 a.m.
Erik de Castro Lopo wrote:
On Wed, 19 Jan 2005 13:56:59 +0900
David Cournapeau <cournape(a)enst.fr> wrote:
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
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