Digital waveguide modelling of room acoustics: Comparing mesh topologies

D. T. Murphy; D. M. Howard

doi:10.1109/EURMIC.1999.794766

Digital waveguide modelling of room acoustics: Comparing mesh topologies

D. T. Murphy, D. M. Howard

Electronic Engineering

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

Digital waveguide models have been used successfully as a partial alternative to time domain models based on the wave equation in the fields of musical acoustics and sound synthesis. 2D and 3D rectilinear topologies of unit delay waveguides have been used to model plates, membranes and acoustic spaces. This paper introduces a more accurate model of wave propagation using a mesh based on a triangular decomposition of the 2D plane. Excitation of the mesh with an appropriate input signal results in an impulse response for the modelled room. Wave phenomena such as diffraction, reflections and interference are natural consequences of the model and can be clearly demonstrated and observed. The low frequency resonances of the modelled room can also be shown. The triangular mesh offers a significant improvement in its frequency response over that of the rectilinear mesh.

Original language	English
Title of host publication	Proceedings - 25th EUROMICRO Conference on Informatics
Subtitle of host publication	Theory and Practice for the New Millennium, EUROMICRO 1999
Pages	82-89
Number of pages	8
DOIs	https://doi.org/10.1109/EURMIC.1999.794766
Publication status	Published - 1999
Event	25th EUROMICRO Conference on Informatics: Theory and Practice for the New Millennium, EUROMICRO 1999 - Milan, Italy Duration: 8 Sept 1999 → 10 Sept 1999

Publication series

Name	Conference Proceedings of the EUROMICRO
Volume	2
ISSN (Print)	1089-6503

Conference

Conference	25th EUROMICRO Conference on Informatics: Theory and Practice for the New Millennium, EUROMICRO 1999
Country/Territory	Italy
City	Milan
Period	8/09/99 → 10/09/99

Access to Document

10.1109/EURMIC.1999.794766

Cite this

@inproceedings{12306470490444a19f778ad6da920b00,

title = "Digital waveguide modelling of room acoustics: Comparing mesh topologies",

abstract = "Digital waveguide models have been used successfully as a partial alternative to time domain models based on the wave equation in the fields of musical acoustics and sound synthesis. 2D and 3D rectilinear topologies of unit delay waveguides have been used to model plates, membranes and acoustic spaces. This paper introduces a more accurate model of wave propagation using a mesh based on a triangular decomposition of the 2D plane. Excitation of the mesh with an appropriate input signal results in an impulse response for the modelled room. Wave phenomena such as diffraction, reflections and interference are natural consequences of the model and can be clearly demonstrated and observed. The low frequency resonances of the modelled room can also be shown. The triangular mesh offers a significant improvement in its frequency response over that of the rectilinear mesh.",

author = "Murphy, {D. T.} and Howard, {D. M.}",

year = "1999",

doi = "10.1109/EURMIC.1999.794766",

language = "English",

isbn = "0769503217",

series = "Conference Proceedings of the EUROMICRO",

pages = "82--89",

booktitle = "Proceedings - 25th EUROMICRO Conference on Informatics",

note = "25th EUROMICRO Conference on Informatics: Theory and Practice for the New Millennium, EUROMICRO 1999 ; Conference date: 08-09-1999 Through 10-09-1999",

}

Murphy, DT & Howard, DM 1999, Digital waveguide modelling of room acoustics: Comparing mesh topologies. in Proceedings - 25th EUROMICRO Conference on Informatics: Theory and Practice for the New Millennium, EUROMICRO 1999., 794766, Conference Proceedings of the EUROMICRO, vol. 2, pp. 82-89, 25th EUROMICRO Conference on Informatics: Theory and Practice for the New Millennium, EUROMICRO 1999, Milan, Italy, 8/09/99. https://doi.org/10.1109/EURMIC.1999.794766

Digital waveguide modelling of room acoustics: Comparing mesh topologies. / Murphy, D. T.; Howard, D. M.
Proceedings - 25th EUROMICRO Conference on Informatics: Theory and Practice for the New Millennium, EUROMICRO 1999. 1999. p. 82-89 794766 (Conference Proceedings of the EUROMICRO; Vol. 2).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

TY - GEN

T1 - Digital waveguide modelling of room acoustics

T2 - 25th EUROMICRO Conference on Informatics: Theory and Practice for the New Millennium, EUROMICRO 1999

AU - Murphy, D. T.

AU - Howard, D. M.

PY - 1999

Y1 - 1999

N2 - Digital waveguide models have been used successfully as a partial alternative to time domain models based on the wave equation in the fields of musical acoustics and sound synthesis. 2D and 3D rectilinear topologies of unit delay waveguides have been used to model plates, membranes and acoustic spaces. This paper introduces a more accurate model of wave propagation using a mesh based on a triangular decomposition of the 2D plane. Excitation of the mesh with an appropriate input signal results in an impulse response for the modelled room. Wave phenomena such as diffraction, reflections and interference are natural consequences of the model and can be clearly demonstrated and observed. The low frequency resonances of the modelled room can also be shown. The triangular mesh offers a significant improvement in its frequency response over that of the rectilinear mesh.

AB - Digital waveguide models have been used successfully as a partial alternative to time domain models based on the wave equation in the fields of musical acoustics and sound synthesis. 2D and 3D rectilinear topologies of unit delay waveguides have been used to model plates, membranes and acoustic spaces. This paper introduces a more accurate model of wave propagation using a mesh based on a triangular decomposition of the 2D plane. Excitation of the mesh with an appropriate input signal results in an impulse response for the modelled room. Wave phenomena such as diffraction, reflections and interference are natural consequences of the model and can be clearly demonstrated and observed. The low frequency resonances of the modelled room can also be shown. The triangular mesh offers a significant improvement in its frequency response over that of the rectilinear mesh.

UR - http://www.scopus.com/inward/record.url?scp=84889011089&partnerID=8YFLogxK

U2 - 10.1109/EURMIC.1999.794766

DO - 10.1109/EURMIC.1999.794766

M3 - Conference contribution

AN - SCOPUS:84889011089

SN - 0769503217

SN - 9780769503219

T3 - Conference Proceedings of the EUROMICRO

SP - 82

EP - 89

BT - Proceedings - 25th EUROMICRO Conference on Informatics

Y2 - 8 September 1999 through 10 September 1999

ER -

Digital waveguide modelling of room acoustics: Comparing mesh topologies

Abstract

Publication series

Conference

Access to Document

Other files and links

Cite this