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TASLP
2010

Diffuse Reverberation Model for Efficient Image-Source Simulation of Room Impulse Responses

8 years 1 months ago
Diffuse Reverberation Model for Efficient Image-Source Simulation of Room Impulse Responses
Abstract-- In many research fields of engineering and acoustics, the image-source model represents one of the most popular tools for the simulation of sound fields in virtual reverberant environments. This can be seen as a result from the relative simplicity and flexibility of this particular method. However, the associated computational costs constitute a well known drawback of image-source implementations, as the required simulation times grow exponentially with the considered reflection order. This paper proposes a method that allows for a fast synthesis of room impulse responses according to the image-source technique. This is achieved by modeling the diffuse reverberation tail as decaying random noise, where the decay envelope for the considered acoustic environment is determined according to a recently proposed method for the prediction of energy decay curves in image-source simulations. The diffuse reverberation model presented in this paper thus produces impulse responses that ...
Eric A. Lehmann, Anders M. Johansson
Added 21 May 2011
Updated 21 May 2011
Type Journal
Year 2010
Where TASLP
Authors Eric A. Lehmann, Anders M. Johansson
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