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Convention Paper

A Low-Delay Algorithm for Instantaneous Pitch Estimation

Authors: Azarov, Elias; Vashkevich, Maxim; Likhachov, D.; Petrovsky, Alexander

AES Convention 138 · Paper 9268 · May 2015

Abstract

Estimation of instantaneous pitch provides high accuracy for frequency-modulated pitches and can be beneficial compared to conventional pitch extraction techniques for unsteady voiced sounds. However, applying an estimator of instantaneous pitch to a practical real-time speech processing application is a hard problem because of high computational cost and high inherent delay. The paper presents an algorithm for instantaneous pitch estimation specifically designed for real-time applications. The analysis scheme is based on the robust algorithm for instantaneous pitch tracking (IRAPT) featuring an efficient processing scheme and low inherent delay. The paper presents some evaluation results using synthesized and natural speech signals that illustrate actual performance of the algorithm.

Details

Published in
AES Convention 138
AES Convention
138
Paper number
9268
Publication date
May 6, 2015
Session subject
Audio Signal Processing
Affiliation
Belarusian State University of Informatics and Radioelectronics, Minsk, Belarus (See document for exact affiliation information.)
Type
Convention Paper