Animating fire with sound
| Autor: | Doug L. James, Jeffrey N. Chadwick |
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| Rok vydání: | 2011 |
| Předmět: | |
| Zdroj: | ACM Transactions on Graphics. 30:1-8 |
| ISSN: | 1557-7368 0730-0301 |
| DOI: | 10.1145/2010324.1964979 |
| Popis: | We propose a practical method for synthesizing plausible fire sounds that are synchronized with physically based fire animations. To enable synthesis of combustion sounds without incurring the cost of time-stepping fluid simulations at audio rates, we decompose our synthesis procedure into two components. First, a low-frequency flame sound is synthesized using a physically based combustion sound model driven with data from a visual flame simulation run at a relatively low temporal sampling rate. Second, we propose two bandwidth extension methods for synthesizing additional high-frequency flame sound content: (1) spectral bandwidth extension which synthesizes higher-frequency noise matching combustion sound spectra from theory and experiment; and (2) data-driven texture synthesis to synthesize high-frequency content based on input flame sound recordings. Various examples and comparisons are presented demonstrating plausible flame sounds, from small candle flames to large flame jets. |
| Databáze: | OpenAIRE |
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