Re: Spherical harmonics for room acoustic modelling

OK maybe not spherical harmonic based but gives the same sorta results and,
therefore, just as interesting :)

On 17 July 2010 22:13, Veikko Eeva <[email protected]> wrote:

>
> From: Oscar Forth <[email protected]>
> > Spherical harmonics for room acoustic modelling
>  > [...]
>
> Not exactly directly related to the original question, but to feed the
> discussion and curious minds regarding sound waves also in games, I
> thought to share that Intel just recently published a paper on this.
>
> Interactive Geometric Sound Propagation and Rendering
> by Micah Taylor, Anish Chandak, Lakulish Antani, Dinesh Manocha
> available at
>
> http://software.intel.com/en-us/articles/interactive-geometric-sound-propagation-and-rendering/
>
> "
> *Abstract*
>
> We describe a novel algorithm and system for sound propagation and
> rendering in virtual environments and media applications. Our approach
> uses geometric propagation techniques for fast computation of
> propagation paths from a source to a listener and takes into account
> specular reflections, diffuse reflections, and edge diffraction. In
> order to perform fast path computation, we use a unified ray-based
> representation to efficiently trace discrete rays as well as volumetric
> ray-frusta. Furthermore, our propagation algorithm scales well with the
> number of cores, and uses interactive audio rendering technique to
> generate spatialized audio signals. The overall approach can render
> sound in dynamic scenes, allowing source, listener, and obstacle motion,
> and we show its performance on game-like and architectural environments.
> To the best of our knowledge, this is the first interactive sound
> rendering system that can perform plausible sound propagation and
> rendering in dynamic virtual environments.
> "
>
>
> Cheers,
> Veikko Eeva
>
>
>
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