Mads Graesboll Christensen
Aalborg University, Denmark


Pitch estimation

Abstract

Periodic signals can be decomposed into a sets of sinusoids having frequencies that are integer 
multiples of a fundamental frequency. The problem of finding such fundamental frequencies from 
noisy observations is important in many speech and audio applications, where it is referred to 
as pitch estimation. These applications include analysis, compression, separation, and enhancement. 
In this talk, we will give an introduction to the fundamentals of pitch estimation, including the 
associated bounds, and present a number of methods for both single and multi pitch estimation based 
on statistical approaches, optimal filtering, and subspace methods