Re: Robust method of fundamental frequency estimation.

["Richard O. Duda" <rod@xxxxxxxx>]

Those who are interested can find the YIN link at
http://www.auditory.org/postings/2002/26.html.

-- Dick Duda

> You should take into account
> that each F0-estimation method is "accompanied" by robustnes
> features, it's never the pure autocorrelation or cepstrum. Even when
> originally developed for speech pitch-tracking (?) you should check out
> the PRAAT software
> (www.fon.hum.uva.nl/praat/),
> where also the C-sources are provided. I remember to check its
> autocorrelation-based method for real instrument recordings and the
> results where quite ok. Maybe you'll find some inspiration for your
> particular problem. There is also some Matlab source-code for the YIN
> algorithm avaiable but I cannot find the link anymore :-(. 
>
> Success!!
>
> Milo
>
> On Jan 31, 2007, at 6:11 PM, Roisin Loughran wrote:
>
> > 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