A New Microphone Array Speech Enhancement Method Based on AR Model

2010 ◽  
pp. 139-147
Author(s):  
Liyan Zhang ◽  
Fuliang Yin ◽  
Lijun Zhang
Keyword(s):  
Speech Enhancement ◽  
Microphone Array ◽  
Ar Model ◽  
Enhancement Method

Generalized Sidelobe Canceller Beamforming with Combined Postfilter and Sparse NMF for Speech Enhancement

2020 ◽  
pp. 2150014
Author(s):  
S. Siva Priyanka ◽  
T. Kishore Kumar
Keyword(s):  
Speech Enhancement ◽  
Matrix Factorization ◽  
Microphone Array ◽  
Least Mean Square ◽  
Generalized Sidelobe Canceller ◽  
Residual Noise ◽  
Enhancement Method ◽  
Sidelobe Canceller ◽  
Diffuse Noise ◽  
Non Negative Matrix Factorization

A multi-microphone array speech enhancement method using Generalized Sidelobe Canceller (GSC) beamforming with Combined Postfilter (CP) and Sparse Non-negative Matrix Factorization (SNMF) is proposed in this paper. GSC beamforming with CP and SNMF is implemented to reduce directional noise, diffuse noise, residual noise and to separate interferences in adverse environment. In this paper, the directional noise is reduced using GSC beamforming, whereas the diffuse noise in each subband is reduced with a combined postfilter using Unconstrained Frequency domain Normalized Least Mean Square (UFNLMS) algorithm. Finally, the residual noise at the output of CP is eliminated by SNMF which optimizes the noise. The performance of the proposed method is evaluated using parameters like PESQ, SSNR, STOI, SDR and LSD. The noise reduction for four and eight microphones is compared and illustrated in spectrograms. The proposed method shows better performance in terms of intelligibility and quality when compared to the existing methods in adverse environments.

Speech enhancement based on AR model parameters estimation

2016 ◽  
Vol 79 ◽  
pp. 30-46 ◽  
Author(s):  
Feng Deng ◽  
Changchun Bao
Keyword(s):  
Speech Enhancement ◽  
Parameters Estimation ◽  
Ar Model ◽  
Model Parameters

A Speech Enhancement Method Using Attention Mechanism and Gated Recurrent Unit

2021 ◽  
Author(s):  
Kaibei Peng ◽  
Xiaoming Sun ◽  
Haowei Chen ◽  
Zhen He ◽  
Jianrong Wang
Keyword(s):  
Speech Enhancement ◽  
Attention Mechanism ◽  
Enhancement Method ◽  
Gated Recurrent Unit
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