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Autocorrelation pitch detection

Paul Boersma points out in his article 'ACCURATE SHORT-TERM ANALYSIS OF THE FUNDAMENTAL FREQUENCY AND THE HARMONICS-TO-NOISE RATIO OF A SAMPLED SOUND' (http://www.fon.hum.uva.nl/paul/papers/Proceedings_1993.pdf) that there are two ways to improve the use of an autocorrelation method to track fundamental frequency in speech. One (correcting the autocorrelation for the effects of the window function) is simple, but the interpolations he suggests for best estimation of the lag and the height of that peak (especially the sin(x)/x one) is not!  Has anyone implemented these procedures in Matlab by any chance, and are willing to share their code?


Yours - Stuart


Stuart Rosen, PhD
Professor of Speech and Hearing Science
UCL Speech, Hearing and Phonetic Sciences
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