Presentation 2008-07-24
Speech Noise Reduction System Using MDFT Pair : Automatic setting of Noise Subtraction Coefficient
Yuuki MINATO, Isao NAKANISHI,
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Abstract(in English) We have proposed the noise reduction system using MDFT pair. An input spectrum and a noise spectrum are detected in real-time and then noise reduction is achieved by subtracting the detected noise spectrum from the input one. This system requires the noise subtraction coefficient in order to reduce the difference between the detected noise level and its true one. In the conventional system, it was set constant empirically. In this paper, we propose an automatic setting method of the noise subtraction coefficient. The effectiveness of the proposed method is confirmed through computer simulations.
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Keyword(in English) Speech Noise Reduction / Signal Level Detector / Noise Level Detector / Noise Subtraction Coefficient
Paper # SIP2008-68,WBS2008-6
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Committee WBS
Conference Date 2008/7/17(1days)
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Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Speech Noise Reduction System Using MDFT Pair : Automatic setting of Noise Subtraction Coefficient
Sub Title (in English)
Keyword(1) Speech Noise Reduction
Keyword(2) Signal Level Detector
Keyword(3) Noise Level Detector
Keyword(4) Noise Subtraction Coefficient
1st Author's Name Yuuki MINATO
1st Author's Affiliation Graduate School of Engineering, Tottori University()
2nd Author's Name Isao NAKANISHI
2nd Author's Affiliation Graduate School of Engineering, Tottori University
Date 2008-07-24
Paper # SIP2008-68,WBS2008-6
Volume (vol) vol.108
Number (no) 165
Page pp.pp.-
#Pages 6
Date of Issue