At amplified music concerts, from medium sized venues to the biggest arenas, low frequency reverberation is known to be the primary source for an undefined sound with low clarity, even close to the loud speakers. Therefore, means for providing additional low frequency absorption is always a concern. Several layers of fabric at various distances from reflecting surfaces has usually been the best option. Still this method provides a relatively modest absorption coefficient in the important 63 and 125 Hz octave bands, while damping the high frequencies which the audience absorbs well, also due to the high Q of loud speakers at higher frequencies. A new, patented technology of inflated, ultra thin plastic membranes seems to solve this challenged in both multipurpose venues that need to adjust their acoustics at the push of a button, or in halls and arenas that only occasionally present amplified music and need to be treated for the event. This paper presents briefly the technology with cases from differently sized halls and arenas.
https://www.aes.org/e-lib/browse.cfm?elib=17415
Click to purchase paper as a non-member or login as an AES member. If your company or school subscribes to the E-Library then switch to the institutional version. If you are not an AES member and would like to subscribe to the E-Library then Join the AES!
This paper costs $33 for non-members and is free for AES members and E-Library subscribers.
Learn more about the AES E-Library
The Engineering Briefs at this Convention were selected on the basis of a submitted synopsis, ensuring that they are of interest to AES members, and are not overly commercial. These briefs have been reproduced from the authors' advance manuscripts, without editing, corrections, or consideration by the Review Board. The AES takes no responsibility for their contents. Paper copies are not available, but any member can freely access these briefs. Members are encouraged to provide comments that enhance their usefulness.
Start a discussion about this paper!
