Opens in a new tab

AES E-Library

← Back to search

Convention Paper

Procedural Audio Modeling for Particle-Based Environmental Effects

Authors: Verron, Charles; Drettakis, George

AES Convention 133 · Paper 8764 · October 2012

Abstract

We present a sound synthesizer dedicated to particle-based environmental effects, for use in interactive virtual environments. The synthesis engine is based on five physically-inspired basic elements (that we call sound atoms) that can be parameterized and stochastically distributed in time and space. Based on this set of atomic elements, models are presented for reproducing several environmental sound sources. Compared to pre-recorded sound samples, procedural synthesis provides extra flexibility to manipulate and control the sound source properties with physically-inspired parameters. In this paper the controls are used simultaneously to modify particle-based graphical models, resulting in synchronous audio/graphics environmental effects. The approach is illustrated with three models that are commonly used in video games: fire, wind, and rain. The physically-inspired controls simultaneously drive graphical parameters (e.g., distribution of particles, average particles velocity) and sound parameters (e.g., distribution of sound atoms, spectral modifications). The joint audio/graphics control results in a tightly-coupled interaction between the two modalities that enhances the naturalness of the scene.

Details

Published in
AES Convention 133
AES Convention
133
Paper number
8764
Publication date
October 6, 2012
Session subject
Sound Analysis and Synthesis
Affiliation
REVES-INRIA, Sophia-Antipolis, France (See document for exact affiliation information.)
Type
Convention Paper