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Conference Paper
Maximization of the Acoustic Energy Difference between Listening and Non-Listening Regions
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- Authors
- Min Cheol Shin, Sung Q Lee, Hye Jin Kim, Kang Ho Park, Dae Sung Kim, Sem Yung Wang
- Issue Date
- 2009-06
- Citation
- International Congress on Sound and Vibration (ICSV) 2009, pp.1-8
- Language
- English
- Type
- Conference Paper
- Abstract
- This paper proposes a technique for controlling sound field with multiple sound sources. It controls the amplitude and phase of the multiple sound sources to maximize the acoustic energy difference between the selected acoustic regions considering the acoustic radiation efficiency. The proposed signal control algorithm defines the listening and non-listening region, and then controls the sound sources for maximizing acoustic energy difference between these regions considering achievable acoustic radiation efficiency. In addition, this control algorithm adapts the tuning factor to adjust the amount of consideration for the two important performances, acoustic energy difference and acoustic radiation efficiency. The effectiveness of this algorithm in mobile applications is evaluated by the computer simulations in comparison with the conventional acoustic brightness and contrast control method.
- KSP Keywords
- Acoustic energy, Acoustic radiation efficiency, Computer simulation(MC and MD), Energy difference, Mobile Application(APP), Signal Control, Sound field, Tuning factor, control algorithm, control method, multiple sound sources