Article | REF: BR1010 V1

A methodological guide for the study of room acoustics - Systematic approach

Author: Jacques JOUHANEAU

Publication date: October 10, 2009, Review date: June 6, 2024

You do not have access to this resource.
Click here to request your free trial access!

Already subscribed? Log in!


Overview

Français

ABSTRACT

Room acoustics is a discipline which requires the implementation of multiple areas of knowledge, by a number of condition variables on a given configuration. This article provides a detailed and systematic approach. After an advanced study on possible difficulties (major defects, coupling, etc.) as well as the calculation of the duration of reverberation and sound levels, the article moves on to the systematic measurement phase before returning to the core issue which is modeling. The fourth phase includes the accomplishments of the project making comparison between the prevision and the actual values and validation of the models. The final phase looks at the opportunities of publishing the results.

Read this article from a comprehensive knowledge base, updated and supplemented with articles reviewed by scientific committees.

Read the article

AUTHOR

 INTRODUCTION

Room acoustics is a discipline that requires a wealth of knowledge in a wide variety of fields. The number of variables conditioning a given configuration is considerable. It is therefore important to prioritize them and select the most relevant for a given purpose. This remark is all the more justified in that the models involved are numerous and, most of the time, incompatible.

The major difficulty with this discipline is that no physical model can describe or predict the behavior of a sound wave in an enclosed space (see [C 3 360] § 1.11).

This deficiency can only be compensated for by bringing into play a myriad of formulas, sometimes geometric, sometimes undulatory, sometimes statistical, sometimes psychophysical, sometimes analogical, sometimes empirical...

The "connection" of these formulas is an operation whose complexity is only suspected by specialists. As a result, the only way to be operational in adapting a room to a given purpose is to know all the laws relating to architectural acoustics, and to master their choice and implementation. It is the role of methodology to enable the acquisition and implementation of this mastery.

With this in mind, three methods will be proposed: the systematic approach [BR 1 010], the model-based approach [BR 1 012] and the linearized approach [BR 1 014] .

The systematic approach [BR 1 010] consists in listing, in chronological order, all the steps required to characterize a room. This is the approach required of any acoustical engineer tasked with optimizing a room for a given purpose: listening, insulation, soundproofing, comfort, etc.

The model-based approach

You do not have access to this resource.

Exclusive to subscribers. 97% yet to be discovered!

You do not have access to this resource.
Click here to request your free trial access!

Already subscribed? Log in!


The Ultimate Scientific and Technical Reference

A Comprehensive Knowledge Base, with over 1,200 authors and 100 scientific advisors
+ More than 10,000 articles and 1,000 how-to sheets, over 800 new or updated articles every year
From design to prototyping, right through to industrialization, the reference for securing the development of your industrial projects

This article is included in

Signal processing and its applications

This offer includes:

Knowledge Base

Updated and enriched with articles validated by our scientific committees

Services

A set of exclusive tools to complement the resources

Practical Path

Operational and didactic, to guarantee the acquisition of transversal skills

Doc & Quiz

Interactive articles with quizzes, for constructive reading

Subscribe now!

Ongoing reading
Methodological guide for the acoustic study of a hall