The University of Southampton
University of Southampton Institutional Repository

Representation of the spatial impulse response of a room

Fazi, Filippo M., Noisternig, Markus and Warusfel, Olivier (2012) Representation of the spatial impulse response of a room At The Acoustics 2012 Hong Kong, Hong Kong. 13 - 18 May 2012.

Record type: Conference or Workshop Item (Other)

Abstract

Microphone arrays allow for the measurement of the so-called spatial impulse response (SIR) of a room or of a concert hall. The SIR provides a local description of the reverberant field of that environment as a function of both time and space. It is shown that, under given assumptions, the SIR can be described by means of an integral operator, the so-called Herglotz wave function, which represents an infinite superposition of plane waves arriving, in general, from all possible directions. The kernel of this operator (the Herglotz kernel) contains all the information on the SIR. In practical cases only a limited amount of information is available to compute the Herglotz kernel, typically because a finite number of sensors is used for the measurement. In that respect, several alternatives are discussed to represent the Herglotz density as a sum of a finite number of basis functions. Some results for numerical simulations are then presented, which show the Herglotz kernel for simple examples. Finally, some limitations of this representation are discussed, especially those imposed by the use of real microphone arrays.

Full text not available from this repository.

More information

Published date: 13 May 2012
Venue - Dates: The Acoustics 2012 Hong Kong, Hong Kong, 2012-05-13 - 2012-05-18
Organisations: Acoustics Group

Identifiers

Local EPrints ID: 339947
URI: http://eprints.soton.ac.uk/id/eprint/339947
PURE UUID: 8f576df4-1541-4ff9-b0e0-fa02921853ae

Catalogue record

Date deposited: 06 Jun 2012 09:55
Last modified: 18 Jul 2017 05:51

Export record

Contributors

Author: Filippo M. Fazi
Author: Markus Noisternig
Author: Olivier Warusfel

University divisions

Download statistics

Downloads from ePrints over the past year. Other digital versions may also be available to download e.g. from the publisher's website.

View more statistics

Atom RSS 1.0 RSS 2.0

Contact ePrints Soton: eprints@soton.ac.uk

ePrints Soton supports OAI 2.0 with a base URL of http://eprints.soton.ac.uk/cgi/oai2

This repository has been built using EPrints software, developed at the University of Southampton, but available to everyone to use.

We use cookies to ensure that we give you the best experience on our website. If you continue without changing your settings, we will assume that you are happy to receive cookies on the University of Southampton website.

×