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Convention Paper

Speech Source Separation Using a Multi-Pitch Harmonic Product Spectrum-Based Algorithm

Authors: Ahmed, Rehan; Gil-Pita, Roberto; Ayllón, David; Álvarez, Lorena

AES Convention 130 · Paper 8408 · May 2011

Abstract

This paper presents an efficient algorithm for separating speech signals by determining multiple pitches from mixtures of signals and assigning the sources to one of those estimated pitches. The pitch detection algorithm is based on Harmonic Product Spectrum. Since the pitch of speech signals fluctuates readily, a frame-based algorithm is used to extract the multiple pitches in each frame. Then, the fundamental frequency (pitch) for each source is estimated and tracked after comparing all the frames. The estimated fundamental frequency of the sources is then used to generate a set of binary masks that allow separating the signals in the Short Time Fourier Transform domain. Results show a considerable separation of the speech signals, justifying the feasibility of the proposed method.

Details

Published in
AES Convention 130
AES Convention
130
Paper number
8408
Publication date
May 6, 2011
Session subject
Posters: Speech and Coding
Affiliation
University of Alcalá, Alcalá de Henares, Spain (See document for exact affiliation information.)
Type
Convention Paper