Harmonic Components Based Post-Filter Design for Residual Echo Suppression
- Authors
- Lee, Minwoo; Lee, Yoonjae; Kim, Kihyeon; Ko, Hanseok
- Issue Date
- 1월-2010
- Publisher
- IEICE-INST ELECTRONICS INFORMATION COMMUNICATIONS ENG
- Keywords
- acoustic echo cancellation system; residual acoustic echo cancellation; harmonic components
- Citation
- IEICE TRANSACTIONS ON FUNDAMENTALS OF ELECTRONICS COMMUNICATIONS AND COMPUTER SCIENCES, v.E93A, no.1, pp.320 - 323
- Indexed
- SCIE
SCOPUS
- Journal Title
- IEICE TRANSACTIONS ON FUNDAMENTALS OF ELECTRONICS COMMUNICATIONS AND COMPUTER SCIENCES
- Volume
- E93A
- Number
- 1
- Start Page
- 320
- End Page
- 323
- URI
- https://scholar.korea.ac.kr/handle/2021.sw.korea/117285
- DOI
- 10.1587/transfun.E93.A.320
- ISSN
- 0916-8508
- Abstract
- In this Letter, a residual acoustic echo suppression method is proposed to enhance the speech quality of hands-free communication in an automobile environment. The echo signal is normally a human voice with harmonic characteristics in a hands-free communication environment. The proposed algorithm estimates the residual echo signal by emphasizing its harmonic components. The estimated residual echo is used to obtain the signal-to-interference ratio (SIR) information at the acoustic echo canceller output. Then, the SIR based Wiener post-filter is constructed to reduce both the residual echo and noise. The experimental results confirm that the proposed algorithm is superior to the conventional residual echo suppression algorithm in terms of the echo return loss enhancement (ERLE) and the segmental signal-to-noise ratio (SEGSNR).
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