Abstract
Measurements have been made in four concert halls, and on scale models of the seats alone, of the attenuation of sound passing at grazing incidence over the seating area. For low-frequency sound, we find attenuation in excess of inverse-square loss, which amounts typically to 15–20 dB; the attenuation is considerably less at frequencies lower and higher than about 150 cps, the frequency of maximum attenuation. This attenuation attains its maximum severity after about 12 seat rows, beyond which little further degradation occurs. It appears to be an interference effect and does not depend markedly on the absorptive properties of the seats. The frequency of maximum attenuation is related primarily to the height of the seats and only secondarily to the row-to-row spacing. This low-frequency loss occurs in all the halls that we have measured, and we believe it to be typical of the main-floor sound of all concert halls.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
