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Detecting Sound Transmission Path of Floor Impact Noise Using Acoustic Visualization in a Multi-Story Building

Title
Detecting Sound Transmission Path of Floor Impact Noise Using Acoustic Visualization in a Multi-Story Building
Author
전진용
Keywords
Floor impact noise; Acoustic visualization; Microphone array
Issue Date
2016-08
Publisher
Internoise 2016
Citation
INTER-NOISE 2016 45th International Congress and Exposition on Noise Control Engineering, Page. 6309-6312
Abstract
This study aims to investigate the sound transmission path of floor impact noise in multi-story buildings through acoustic visualization. Floor impact noise was measured in a multi-story building with the 32-channel spherical microphone array. The floor impact noise was generated by the bang machine, the impact ball and the tapping machine in a living room. A microphone array was located at the center of the receiving room. Plane wave decomposition and adaptive beamforming technique, such as Minimum Variance Distortioneless Response (MVDR) spatial spectrum estimate, were used in order to detect the sound transmission path in the room. Directional impulse responses (DIRs) were generated and the sound level was visualized in a video, which was combined with the 360-degree view of the receiver in the living room. Through the acoustic visualization, sound transmission path was discussed based on the contribution of room components such as a ceiling, walls and windows on the floor impact noise.
URI
http://pub.dega-akustik.de/IN2016/data/articles/000733.pdfhttps://repository.hanyang.ac.kr/handle/20.500.11754/75145
ISBN
978-3-939296-11-9
ISSN
0105-175x
Appears in Collections:
COLLEGE OF ENGINEERING[S](공과대학) > ARCHITECTURAL ENGINEERING(건축공학부) > Articles
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