217 0

A new approach for acoustic visualization using directional impulse response in room acoustics

Title
A new approach for acoustic visualization using directional impulse response in room acoustics
Author
전진용
Keywords
Room acoustics; Spatial analysis; Plane wave decomposition; Adaptive beamforming; Acoustic visualization
Issue Date
2016-01
Publisher
PERGAMON-ELSEVIER SCIENCE LTD
Citation
BUILDING AND ENVIRONMENT, v. 98, Page. 150-157
Abstract
A new approach is proposed for investigating the temporal and spatial structures of room impulse responses (IRs) using sound field decomposition. A spherical microphone array was used to analyze the directional characteristics of sound fields through reconstructing the sound fields in an actual chamber hall. To perform directional and spatial characterization of recorded sounds, a plane wave decomposition with an adaptive beamforming technique, such as minimum variance distortionless response (MVDR) spatial spectrum estimation, was employed. Based on the proposed method, a directional impulse response (DIR) was generated in the hall, and the sound level was visualized in a video, which was combined with the viewpoint of each receiver. In addition, the DIR was used to calculate the early energy distribution in three-dimensional directions and the results were represented in the hall plan. This method of acoustic visualization can be used to estimate the effects of architectural design components on the directionality of sounds in rooms. (C) 2016 Elsevier Ltd. All rights reserved.
URI
http://www.sciencedirect.com/science/article/pii/S0360132316300075?via%3Dihubhttp://hdl.handle.net/20.500.11754/31439
ISSN
0360-1323; 1873-684X
DOI
10.1016/j.buildenv.2016.01.007
Appears in Collections:
COLLEGE OF ENGINEERING[S](공과대학) > ARCHITECTURAL ENGINEERING(건축공학부) > Articles
Files in This Item:
There are no files associated with this item.
Export
RIS (EndNote)
XLS (Excel)
XML


qrcode

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

BROWSE