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Convention Paper

Monaural Speech Source Separation by Estimating the Power Spectrum Using Multi-Frequency Harmonic Product Spectrum

Authors: Ayllon, David; Gil-Pita, Roberto; Rosa-Zurera, Manuel

AES Convention 134 · Paper 8832 · May 2013

Abstract

This paper proposes an algorithm to perform monaural speech source separation by means of time-frequency masking. The algorithm is based on the estimation of the power spectrum of the original speech signals as a combination of a carrier signal multiplied by an envelope. A Multi-Frequency Harmonic Product Spectrum (MF-HPS) algorithm is used to estimate the fundamental frequency of the signals in the mixture. These frequencies are used to estimate both the carrier and the envelope from the mixture. Binary masks are generated comparing the estimated spectra of the signals. Results show an important improvement in the separation in comparison to the original algorithm that only uses the information from the HPS.

Details

Published in
AES Convention 134
AES Convention
134
Paper number
8832
Publication date
May 6, 2013
Session subject
Speech Processing
Affiliation
University of Alcala, Alcalá de Henares, Spain (See document for exact affiliation information.)
Type
Convention Paper