Adaptive noise power spectrum estimation for compact dual channel speech enhancement

Author

Jeong, So-Young ; Kim, Kyuhong ; Jeong, Jae-Hoon ; Oh, Kwang-Cheol ; Kim, Jeongsu

Author_Institution

Samsung Adv. Inst. of Technol., Samsung Electron. Co., Ltd., Yongin, South Korea

fYear

2010

fDate

14-19 March 2010

Firstpage

1630

Lastpage

1633

Abstract

We present a novel noise power estimation method based on smoothed spectral minima tracking and subtractive blocking matrix for dual-channel speech enhancement. By combining spectral characteristics of the noisy mixture signals with spatial null beam-forming, noise over- and under-estimation problem can be substantially mitigated. The proposed noise estimation tested on the real-life nonstationary noise conditions outperformed other single-channel noise estimation based on minima tracking and dual-channel phase error based enhancement algorithm.

Keywords

array signal processing; matrix algebra; probability; speech enhancement; adaptive noise power spectrum estimation; compact dual channel speech enhancement; smoothed spectral minima tracking; spatial null beam-forming; subtractive blocking matrix; Array signal processing; Low-frequency noise; Microphone arrays; Noise generators; Noise robustness; Phase estimation; Phase noise; Recursive estimation; Spectral analysis; Speech enhancement; noise estimation; smoothed spectral minima tracking; speech enhancement; speech presence probability;

fLanguage

English

Publisher

ieee

Conference_Titel

Acoustics Speech and Signal Processing (ICASSP), 2010 IEEE International Conference on

Conference_Location

Dallas, TX

ISSN

1520-6149

Print_ISBN

978-1-4244-4295-9

Electronic_ISBN

1520-6149

Type

conf

DOI

10.1109/ICASSP.2010.5495539

Filename

5495539