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Initial Investigation of Position Determination of Various Sound Sources in a Room

Authors:
Takeru Kadokura
Yuki Hashizume
Shigenori Ioroi
Hiroshi Tanaka

Keywords: Positioning, Sound Source, TDOA, CSP Analysis, Real Environment

Abstract:
Special sounds, such as ultrasonic waves and diffused sound sources used to perform high precision indoor positioning. If the positioning of various ordinary sound sources in a room becomes possible, it is thought that numerous applications are likely. This paper proposes a new method to estimate with high accuracy the position of various ordinary indoor sound sources, rather than using any special sound source. We constructed an environment where positioning experiments can be performed by knowing the size of the actual sonic environment. Positioning experiments were conducted using the sound of an operating microwave oven, the ringing tone of a telephone, and a diffused sound source. Highly accurate positioning about +/- 20 cm could be realized for the diffused sound and the microwave oven. In contrast, it was confirmed that the ringtone had a positioning error exceeding 1 m.

Pages: 14 to 18

Copyright: Copyright (c) IARIA, 2019

Publication date: September 22, 2019

Published in: conference

ISSN: 2326-9324

ISBN: 978-1-61208-739-9

Location: Porto, Portugal

Dates: from September 22, 2019 to September 26, 2019