akutek.info

The www center for search, research and free sharing in acoustics

Acoustics

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www.akutek.info was launched 17.08.2006; Latest change 02.07.2009; Latest NEWS; E-mail: akutek@akutek.info

This site is dedicated to topics in room acoustics, music acoustics, speech acoustics, perception and their interrelation in general, and concert hall acoustics and stage acoustics in particular.

Autocorrelation

Intimacy in different seats of Amsterdam Concertgebouw (auralizations). Different initial time delay gaps ITDG: 6 ms; 20 ms; 34 ms; 47 ms; anechoic reference

Superposition of waves (animation)

P Svensson: “The Early History of Ray Tracing in Room Acoustics”

Reflectors and canopies: Far Field scattering from a periodic array

”Bad acoustics impairing learning”

More…..

Today:    
Canopy Arrays (research topic)

NEW:

Stochastic nature of Room Acoustics, Part 2
(akuTEK article)

This week:

Culling insignificant diffraction components

a presentation by P Svensson and P Calamia

Diffraction is necessary to achieve perceptual realism and physical accuracy in acoustic simulations of complex environments, however diffraction calculations add significant computational load and difficulties to interactive simulations.

The authors describe a method to reduce diffraction-related computations by culling insignificant diffracted paths before their IRs are calculated.