Chameleon subwoofer arrays in live sound
Journal article
Hill, Adam J. and Hawksford, Malcolm O. J. 2011. Chameleon subwoofer arrays in live sound. Acoustics Bulletin.
| Authors | Hill, Adam J. and Hawksford, Malcolm O. J. |
|---|---|
| Abstract | Live-sound subwoofer systems should deliver low-frequency sound evenly distributed throughout the audience area while simultaneously minimizing sound pressure levels on stage. Approximate solutions generally exploit cardioid subwoofers and/or steerable subwoofer clusters, yet require venue-specific manual fine tuning limited mainly by practical positioning issues. Enhanced live-sound systems are explored using a virtual three-dimensional acoustic space to model dominant venue characteristics. Specifically the Chameleon Subwoofer Array (CSA) is incorporated, already proposed as a solution to small-room low-frequency sound reproduction by extending the available degrees of freedom to control sound distribution in the target space. The CSA is adapted and scaled to match the large-scale dimensions typical of live events with 3-D simulation used to optimize and validate performance. Adaptation of existing industry-standard equipment with only minor modification is presented as a core feature. |
Live-sound subwoofer systems should deliver low-frequency sound evenly distributed throughout the audience area while simultaneously minimizing sound pressure levels on stage. Approximate solutions generally exploit cardioid subwoofers and/or steerable subwoofer clusters, yet require venue-specific manual fine tuning limited mainly by practical positioning issues. Enhanced live-sound systems are explored using a virtual three-dimensional acoustic space to model dominant venue characteristics. Specifically the Chameleon Subwoofer Array (CSA) is incorporated, already proposed as a solution to small-room low-frequency sound reproduction by extending the available degrees of freedom to control sound distribution in the target space. The CSA is adapted and scaled to match the large-scale dimensions typical of live events with 3-D simulation used to optimize and validate performance. Adaptation of existing industry-standard equipment with only minor modification is presented as a core feature. | |
| Keywords | Acoustics; Live sound; Loudspeakers; Digital signal processing |
| Year | 2011 |
| Journal | Acoustics Bulletin |
| Publisher | Institute of Acoustics |
| Web address (URL) | http://hdl.handle.net/10545/229872 |
| hdl:10545/229872 | |
| Publication dates | Jun 2011 |
| Publication process dates | |
| Deposited | 20 Jun 2012, 11:50 |
| Contributors | University of Essex |
| File | File Access Level Open |
| File | File Access Level Open |
| File | File Access Level Open |
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