Physically derived synthesis model of a cavity tone

Selfridge, Rod; Reiss, Joshua; Avital, Eldad

Abstract

The cavity tone is the sound generated when air flows over the open surface of a cavity and a number of physical conditions are met. Equations obtained from fluid dynamics and aerodynamics research are utilised to produce authentic cavity tones without the need to solve complex computations. Synthesis is performed with a physical model where the geometry of the cavity is used in the sound synthesis calculations. The model operates in real-time making it ideal for integration within a game or virtual reality environment. Evaluation is carried out by comparing the output of our model to previously published experimental, theoretical and computational results. Results show an accurate implementation of theoretical acoustic intensity and sound propagation equations as well as very good frequency predictions.

Citation

Selfridge, R., Reiss, J., & Avital, E. (2017, September). Physically derived synthesis model of a cavity tone. Presented at 20th International Conference on Digital Audio Effects, Edinburgh, UK

• Presentation Conference Type: Conference Paper (published)
• Conference Name: 20th International Conference on Digital Audio Effects
• Start Date: Sep 7, 2017
• End Date: Sep 9, 2017
• Online Publication Date: Sep 7, 2017
• Publication Date: Sep 7, 2017
• Deposit Date: Jan 25, 2023
• Book Title: Proceedings of the 20th International Conference on Digital Audio Effects (DAFx-17)