Skip to main content

Estimation Methods for Sound Levels and Reverberation Time in a Room with Irregular Shape or Absorption Distribution


The full text article is not available for purchase.

The publisher only permits individual articles to be downloaded by subscribers.

The reverberation time of an enclosed space is an important parameter to describe the acoustic quality in enclosed spaces. Mainly due to its simplicity Sabine's equation is normally used even though the considered situations seldom comply with its preconditions: regular room shape, regular distribution of absorption and not to much absorption. For certain groups of applications the prediction errors can be countered by adding empirical corrections, by applying specific interpretations of the input data or by modifications to the Sabine equation. For other applications more sophisticated modelling could be appropriate. But it would be very practical for many applications to have available an engineering type of prediction scheme for the reverberation time or the sound level distribution in enclosed spaces using well-known laboratory data as input. Possibilities for such prediction schemes are developed and discussed in this paper, as back ground information to the informative annexes to the European standard EN 12354, part 6.

Document Type: Research Article

Publication date: September 1, 2006

More about this publication?
  • Acta Acustica united with Acustica, published together with the European Acoustics Association (EAA), is an international, peer-reviewed journal on acoustics. It publishes original articles on all subjects in the field of acoustics, such as general linear acoustics, nonlinear acoustics, macrosonics, flow acoustics, atmospheric sound, underwater sound, ultrasonics, physical acoustics, structural acoustics, noise control, active control, environmental noise, building acoustics, room acoustics, acoustic materials, acoustic signal processing, computational and numerical acoustics, hearing, audiology and psychoacoustics, speech, musical acoustics, electroacoustics, auditory quality of systems. It reports on original scientific research in acoustics and on engineering applications. The journal considers scientific papers, technical and applied papers, book reviews, short communications, doctoral thesis abstracts, etc. In irregular intervals also special issues and review articles are published.
  • Editorial Board
  • Information for Authors
  • Submit a Paper
  • Subscribe to this Title
  • Information for Advertisers
  • Online User License
  • Ingenta Connect is not responsible for the content or availability of external websites
  • Access Key
  • Free content
  • Partial Free content
  • New content
  • Open access content
  • Partial Open access content
  • Subscribed content
  • Partial Subscribed content
  • Free trial content