AES Los Angeles 2016
Tutorial T15
Sunday, October 2, 3:15 pm — 4:45 pm (Rm 406AB)
T15 - Diffusion: Defined and Demystified
Presenter:Alejandro Bidondo, Universidad Nacional de Tres de Febrero - UNTREF - Caseros, Buenos Aires, Argentina
Abstract:
In order to expand the description of diffusion surfaces towards their effects in the sound field, several technical concepts and new definitions will be presented in this Diffusion Tutorial: Impulse responses: measurement and analysis, "texture" of an impulse response; statistical & temporal acoustic behavior of a room: the Crossover time; room´s early and late sound fields, measuring the Crossover time. What is a diffuser? … It is all about Autocorrelation. How many diffusers should be installed in a...? (theater, studio, concert hall, etc.) Describing the acoustic properties of a surface: absorption, diffusion and scattering coefficients. What is a diffuse sound field? Defining and quantifying the sound field diffusivity: SFDC - A systematic experiment. Calculation method of SFDC. Examples and applications.