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학술지 Improved Noise Reduction with Packet Loss Recovery Based on Post-Filtering over IP Networks
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저자
김진술, 이현우, 류원, 한승호, 한민수
발행일
200803
출처
IEICE Transactions on Communications, v.E91-B no.3, pp.975-979
ISSN
0916-8516
출판사
일본, 전자정보통신학회 (IEICE)
DOI
https://dx.doi.org/10.1093/ietcom/e91-b.3.975
협약과제
08KT1200, 공통서비스인프라 기반 이동성 및 품질보장 제어기술 개발, 류원
초록
This letter mainly focuses on improving current noise reduction methods to solve the critical speech distortion problems with robust noise reduction in noisy speech signals for speech enhancement over IP networks. For robust noise reduction with packet loss recovery, we propose a novel optimized Wiener filtering technique that uses the estimated SNR (Signal-to-Noise Ratio) with packet loss recovery method which is applied as post-filtering over IP-networks. Simulation results demonstrate that the proposed scheme provides better reduction and recovery rates with considering packet loss and SNR environment than other methods. Copyright © 2008 The Institute of Electronics, Information and Communication Engineers.
키워드
Noise reduction, Packet loss, Packet-based networks, Post-filtering, Speech distortion
KSP 제안 키워드
Filtering technique, IP networks, Information and communication, Noise reduction(NR), Packet loss recovery, Recovery method, Recovery rate, Reduction method, Signal noise ratio(SNR), Signal-to-Noise, Speech Signal