Dear list,
I was wondering if any of you know the most robust way to calculate the
fundamental frequency of a note across the range of a variety of
instruments?
I'm currently working on a matlab program and have tried using the
auto-correlation method and the cepstrum method but have found that
these both have difficulty in calculating f0 of timbre-rich tones such
as those from a piano - particularly in the lower pitch ranges. Does
anyone know of a method that is more reliable in these regions or is it
necessary that I investigate such complex tones by a different means?
From examining a number of the FFTs from these signals it is tempting
to just pick the first strongest partial - the complex overtones just
seem to confuse the more complicated algorithms, but I realise that this
is hardly a reliable approach.
Any suggestion would be greatly appreciated,
Thanks in advance,
Roisin Loughran
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