Real-time 2 dimensional sound source localization by 128-channel huge microphone array

被引：13

作者：

Tamai, Y ^{[1
]}

Kagami, S ^{[1
]}

Mizoguchi, H ^{[1
]}

Amemiya, Y ^{[1
]}

Nagashima, K ^{[1
]}

Takano, T ^{[1
]}

机构：

[1] Natl Inst Adv Ind Sci & Technol, DHRC, Koto Ku, Tokyo 1350064, Japan

来源：

RO-MAN 2004: 13TH IEEE INTERNATIONAL WORKSHOP ON ROBOT AND HUMAN INTERACTIVE COMMUNICATION, PROCEEDINGS | 2004年

关键词：

sound source localization; microphone array;

D O I：

10.1109/ROMAN.2004.1374731

中图分类号：

TP18 [人工智能理论];

学科分类号：

081104 ; 0812 ; 0835 ; 1405 ;

摘要：

This paper describes real-time 2 dimensional sound source localization in an ordinary environment, using a 128-channel huge microphone array. Sound source localization by our microphone array is achieved by the sum and delay beam former(SDBF). A dedicated pci 128- channel simultaneous input anloog-to-digital(AD) board with a 5 mu s DMA transfer was developed for a 128-channel microphone array. Sampling frequency of this microphone array is 11 kHz. In order to keep a fixed cycle such as 11 kHz, "ART-Linux" is used. A sound source can be localized in the range of about +/- 10cm error. It takes about 1 s to localize a sound source. Sound source localization by our 128-channel huge microphone array is evaluated by sound pressure distribution. Moreover, our microphone army can be used in order to separate multiple sound sources, reflection and reverberation. Our microphone array will be used as an application of a robotics room for human behavior analysis from results of sound source localization and separation etc.

引用

页码：65 / 70

页数：6

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