A study on the sound field in a vault with two open ends
Date of Issue2010
School of Mechanical and Aerospace Engineering
The sound field in a vault with two open ends is studied and its sound pressure distribution is compared with that in an enclosure and a long space. The accuracy of estimation on this kind of space by the classic Sabine Formula, the modified Sabine Formula and the ray tracing method are compared through numerical simulations and experiments. It is found that the sound field in this type of non-close space is not uniform, SPL declines faster near the openings, and RT values have a large span when the source is not at the center. Non-exponential decay is also found in this open vault, and the reason and precondition of its occurrence are discussed.
DRNTU::Science::Physics::Acoustics and sound
© 2010 Elsevier. This is the author created version of a work that has been peer reviewed and accepted for publication by Applied Acoustics, Elsevier. It incorporates referee’s comments but changes resulting from the publishing process, such as copyediting, structural formatting, may not be reflected in this document. The published version is available at: http://dx.doi.org/10.1016/j.apacoust.2010.01.006.