By Topic

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

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$31 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

6 Author(s)
Tamai, Y. ; DHRC, Nat. Inst. of Adv. Ind. Sci. & Technol., Tokyo, Japan ; Kagami, S. ; Mizoguchi, H. ; Amemiya, Y.
more authors

This work 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 analog-to-digital (AD) board with a 5 μs 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 ±10 cm 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 array can be used in order to separate multiple sound sources, reflection and reverberation. Our microphone array is used as an application of a robotics room for human behavior analysis from results of sound source localization and separation etc.

Published in:

Robot and Human Interactive Communication, 2004. ROMAN 2004. 13th IEEE International Workshop on

Date of Conference:

20-22 Sept. 2004