Estimation of Reflections from Impulse Responses-Reference-Cited by-同舟云学术

Estimation of Reflections from Impulse Responses

Published:2011-03 Issue:1-2 Volume:18 Page:159-173
ISSN:1351-010X
Container-title:Building Acoustics
language:en
Short-container-title:Building Acoustics

Author:

Tervo Sakari¹,Korhonen Teemu²,Lokki Tapio¹

Affiliation:

1. Aalto University, School of Science and Technology, Department of Media Technology, P.O. Box 15400, FI-00076 Aalto, Finland

2. Tampere University of Technology, Department of Signal Processing, P.O. Box 553, FI-33101 Tampere, Finland

Abstract

The characteristics of early reflections have a major effect on the acoustics of concert halls. In this article a framework for automatic localization of reflections and their properties is formulated. The framework uses impulse responses measured with multiple microphones. The focus is on the methods that can be used for detecting reflections and the methods that estimate the direction of arrival. Three methods for both tasks are given and their performance is measured using simulated data. Finally an example in a real auditorium is shown using the most reliable methods for detecting and estimating the direction of arrival of the reflections.

Publisher

SAGE Publications

Subject

Mechanical Engineering,Acoustics and Ultrasonics,Building and Construction

Link

http://journals.sagepub.com/doi/pdf/10.1260/1351-010X.18.1-2.159

Reference11 articles.

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2. Sensor-array calibration using a maximum-likelihood approach

3. Array shape calibration using sources in unknown locations--Part II: Near-field sources and estimator implementation

4. Acoustic imaging in enclosed spaces: Analysis of room geometry modifications on the impulse response

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