| Issue |
MATEC Web Conf.
Volume 79, 2016
VII Scientific Conference with International Participation “Information-Measuring Equipment and Technologies” (IME&T 2016)
|
|
|---|---|---|
| Article Number | 01001 | |
| Number of page(s) | 6 | |
| DOI | https://doi.org/10.1051/matecconf/20167901001 | |
| Published online | 11 October 2016 | |
Visualization of Broadband Sound Sources
Radiophysics Faculty, Tomsk State University, 634050, Tomsk, Russia
* Corresponding author: sdy@mail.tsu.ru
In this paper the method of imaging of wideband audio sources based on the 2D microphone array measurements of the sound field at the same time in all the microphones is proposed. Designed microphone array consists of 160 microphones allowing to digitize signals with a frequency of 7200 Hz. Measured signals are processed using the special algorithm that makes it possible to obtain a flat image of wideband sound sources. It is shown experimentally that the visualization is not dependent on the waveform, but determined by the bandwidth. Developed system allows to visualize sources with a resolution of up to 10 cm.
© The Authors, published by EDP Sciences, 2016
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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