Masking Property Based Residual Acoustic Echo Cancellation for Hands-Free Communication in Automobile Environment

A residual acoustic echo cancellation method that employs the masking property is proposed to enhance the speech quality of hands-free communication devices in an automobile environment. The conventional masking property is employed for speech enhancement using the masking threshold of the desired c...

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Veröffentlicht in:IEICE Transactions on Information and Systems 2008/10/01, Vol.E91.D(10), pp.2528-2531
Hauptverfasser: LEE, Yoonjae, JEONG, Seokyeong, KO, Hanseok
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container_title IEICE Transactions on Information and Systems
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creator LEE, Yoonjae
JEONG, Seokyeong
KO, Hanseok
description A residual acoustic echo cancellation method that employs the masking property is proposed to enhance the speech quality of hands-free communication devices in an automobile environment. The conventional masking property is employed for speech enhancement using the masking threshold of the desired clean speech signal. In this Letter, either the near-end speech or residual noise is selected as the desired signal according to the double-talk detector. Then, the residual echo signal is masked by the desired signal (masker). Experiments confirm the effectiveness of the proposed method by deriving the echo return loss enhancement and by examining speech waveforms and spectrograms.
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source Elektronische Zeitschriftenbibliothek - Frei zugängliche E-Journals; J-STAGE (Japan Science & Technology Information Aggregator, Electronic) Freely Available Titles - Japanese
subjects acoustic echo cancellation system
Acoustic properties
Applied sciences
Automobiles
Automotive components
Automotive engineering
Cancellation
Detection, estimation, filtering, equalization, prediction
Exact sciences and technology
Information, signal and communications theory
Masking
masking effect
Miscellaneous
perceptual filter
residual acoustic echo cancellation
Signal and communications theory
Signal processing
Signal representation. Spectral analysis
Signal, noise
Spectrograms
Speech
Speech processing
Telecommunications and information theory
title Masking Property Based Residual Acoustic Echo Cancellation for Hands-Free Communication in Automobile Environment
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