Accession Number : ADD015892

Title :   Digital Reverberation Time Measurement System.

Descriptive Note : Patent, Filed 28 Feb 91, patented 13 Jul 93,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON DC

Personal Author(s) : Kipple, Blair M ; Noll, Douglas A ; Chiang, Andrew H

Report Date : 13 Jul 1993

Pagination or Media Count : 15

Abstract : Apparatus and method, having both structural and acoustical applicability, for measuring damping of a solid or fluid resonant physical system in terms of reverberation or decay time, featuring a digital computer based measurement system in which plural numbers of resonances are grouped into single analysis bands. The resonant response is converted into an electronic signal, which is then pre-amplified, filtered, post-amplified, digitized and finally processed so as to determine the reverberation time in the resonant physical system.

Descriptors :   *DAMPING, *PATENTS, *ACOUSTIC MEASUREMENT, DECAY, FLUIDS, MEASUREMENT, RESPONSE, REVERBERATION, SIGNALS, SOLIDS, DIGITAL SYSTEMS, RESONANCE, SIGNAL PROCESSING, RESONANT FREQUENCY, OSCILLATORS, VIBRATION

Subject Categories : Acoustics

Distribution Statement : APPROVED FOR PUBLIC RELEASE