Predicting the reverberation time in rectangular rooms with non-uniform absorption distribution

A method for predicting the reverberation time and decay curves of rectangular rooms with non-uniform absorption distribution using Statistical Energy Analysis

Prediction of the Reverberation Time in Rectangular Rooms with Non- Uniformly Distributed Sound Absorption

SUMMARY The aim of this paper is first to review the best known reverberation time formulae and then to show that the reverberation time cannot be thereby predicted accurately in cases mostly encountered in practice, where the sound field is not diffuse. Introducing a correction to Fitzroy's formula allows better prediction of the reverberation time in the case of non-uniformly distributed soun...

Reverberation Condition Evaluation for Rectangular Rooms with Non-Uniformly Distributed Sound Absorption

The most common cause of reduced diffusion of the acoustical field is extensive sound absorbing applied to the ceiling and the floor, and contrarily walls reflect sound well and they are vertical and poorly subdivided. In such rooms, sound waves propagating in directions close to horizontal attenuate slowly form a horizontal reverberant field. The reverberation time appears to exceed the value ...

Prediction of the Reverberation Time in Rooms with Non Uniform Absorptions Using a Diffusion Model

The acoustical comfort is now a comfort’s criterion which is taken into from the conception. The designers need therefore accurate tools to predict the acoustic quality of enclosures. Most of the acoustical comfort criteria are based on the reverberation time. When the room has proportionate dimensions and an uniform absorption, the statistical theory through Sabine or Eyring formulas allows go...

Reverberation Time in "dead" Rooms

culation by the aid of a reliable formula, then, is an important aspect of applied acoustics. A reverberation time formula enables one to calculate the reverberation time once the volume, surface area and average absorption coefficient of the surface of the room are known; or if the reverberation time is measured it enables one to calculate the average coefficient of absorption of the surface t...