Presentation 2017-08-24
An Adjustment Method for Microphone Array Directivity Based on Optimal Condition
Takeshi Isomoto, Kenji Suyama,
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Abstract(in Japanese) (See Japanese page)
Abstract(in English) A microphone array is used in a speech recognition system for a high S/N sound capture. The high S/N sound capture can be achieved by forming a directivity pattern of the microphone array. In this study, the directivity pattern is designed by using the linear semi-infinite programming method. Under a real situation, it is assumed that the sound source is moving. Therefore, an accelerated redesign of the directivity pattern is required. In this paper, the accelerated redesign method based on the directivity pattern before the moving is proposed. Several redesign examples are shown to present the effectiveness of the proposed method.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) directivity pattern / linear semi-infinite programming method / post-optimization technique
Paper # SIP2017-49
Date of Issue 2017-08-17 (SIP)

Conference Information
Committee SIP
Conference Date 2017/8/24(2days)
Place (in Japanese) (See Japanese page)
Place (in English) Tokyo Denki University
Topics (in Japanese) (See Japanese page)
Topics (in English)
Chair Masahiro Okuda(Univ. of Kitakyushu)
Vice Chair Shogo Muramatsu(Niigata Univ.) / Naoyuki Aikawa(TUS)
Secretary Shogo Muramatsu(Chiba Inst. of Tech.) / Naoyuki Aikawa(Takushoku Univ.)
Assistant Masayoshi Nakamoto(Hiroshima Univ.ひろ)

Paper Information
Registration To Technical Committee on Signal Processing
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) An Adjustment Method for Microphone Array Directivity Based on Optimal Condition
Sub Title (in English)
Keyword(1) directivity pattern
Keyword(2) linear semi-infinite programming method
Keyword(3) post-optimization technique
1st Author's Name Takeshi Isomoto
1st Author's Affiliation Tokyo Denki University(Tokyo Denki Univ.)
2nd Author's Name Kenji Suyama
2nd Author's Affiliation Tokyo Denki University(Tokyo Denki Univ.)
Date 2017-08-24
Paper # SIP2017-49
Volume (vol) vol.117
Number (no) SIP-180
Page pp.pp.7-12(SIP),
#Pages 6
Date of Issue 2017-08-17 (SIP)