Optimal Gain Filter Design for Perceptual Acoustic Echo Suppressor
- Authors
- Kim, Kihyeon; Ko, Hanseok
- Issue Date
- 6월-2009
- Publisher
- IEICE-INST ELECTRONICS INFORMATION COMMUNICATIONS ENG
- Keywords
- acoustic echo cancellation system; perceptual acoustic echo suppressor; auditory spectral envelope; optimally-modified log-spectral amplitude
- Citation
- IEICE TRANSACTIONS ON INFORMATION AND SYSTEMS, v.E92D, no.6, pp.1320 - 1323
- Indexed
- SCIE
SCOPUS
- Journal Title
- IEICE TRANSACTIONS ON INFORMATION AND SYSTEMS
- Volume
- E92D
- Number
- 6
- Start Page
- 1320
- End Page
- 1323
- URI
- https://scholar.korea.ac.kr/handle/2021.sw.korea/119885
- DOI
- 10.1587/transinf.E92.D.1320
- ISSN
- 1745-1361
- Abstract
- This Letter proposes an optimal gain filter for the perceptual acoustic echo suppressor. We designed an optimally-modified log-spectral amplitude estimation algorithm for the gain filter in order to achieve robust suppression of echo and noise. A new parameter including information about interferences (echo and noise) of single-talk duration is statistically analyzed, and then the speech absence probability and the a posteriori SNR are judiciously estimated to determine the optimal solution. The experiments show that the proposed gain filter attains a significantly improved reduction of echo and noise with less speech distortion.
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Collections - College of Engineering > School of Electrical Engineering > 1. Journal Articles
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