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作者:

Wang, Qing (Wang, Qing.) | Bao, Chang-chun (Bao, Chang-chun.) (学者:鲍长春)

收录:

CPCI-S

摘要:

In this paper, we propose a codebook-based Bayesian linear predictive (LP) parameters estimation for speech enhancement, in which the LP parameters are estimated based on the current and past frames of noisy speech. First, by using hidden Markov model (HMM), we develop a new method to drive the speech presence probability (SPP) and speech absence probability (SAP). These two probabilities are the weighting coefficients for the estimated LP parameters corresponding to speech presence and speech absence states. Then we exploit the normalized cross-correction to adjust the transition probabilities between speech-presence and speech-absence states of HMM. The proposed adjustment method makes the SPP estimation more accurately. Finally, in order to suppress the noise between the harmonics of voiced speech, we employ the a posteriori SPP to modify the Wiener filter for enhancing the noisy speech. Our experiments demonstrate that the proposed method is superior to the reference methods.

关键词:

Wiener filter Speech enhancement Linear predictive parameters Speech presence probability

作者机构:

  • [ 1 ] [Wang, Qing]Beijing Univ Technol, Sch Elect Informat & Control Engn, Speech & Audio Signal Proc Lab, Beijing 100124, Peoples R China
  • [ 2 ] [Bao, Chang-chun]Beijing Univ Technol, Sch Elect Informat & Control Engn, Speech & Audio Signal Proc Lab, Beijing 100124, Peoples R China

通讯作者信息:

  • [Wang, Qing]Beijing Univ Technol, Sch Elect Informat & Control Engn, Speech & Audio Signal Proc Lab, Beijing 100124, Peoples R China

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来源 :

2015 ASIA-PACIFIC SIGNAL AND INFORMATION PROCESSING ASSOCIATION ANNUAL SUMMIT AND CONFERENCE (APSIPA)

ISSN: 2309-9402

年份: 2015

页码: 1245-1248

语种: 英文

被引次数:

WoS核心集被引频次: 1

SCOPUS被引频次:

ESI高被引论文在榜: 0 展开所有

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