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Acoustics: Sound Fields, Transducers and Vibration, 2nd Edition
book

Acoustics: Sound Fields, Transducers and Vibration, 2nd Edition

by Leo Beranek, Tim Mellow
May 2019
Intermediate to advanced content levelIntermediate to advanced
900 pages
29h 35m
English
Academic Press
Content preview from Acoustics: Sound Fields, Transducers and Vibration, 2nd Edition

6.7. Frequency–response curves

A frequency–response curve of a loudspeaker is defined as the variation in sound pressure or acoustic power as a function of frequency, with some quantity such as voltage or electrical power held constant. To calculate the full frequency response, we refer to Fig. 6.4 but using Eqs. (13.116)–(13.118) for the exact acoustic radiation impedance instead of lumped elements. The total impedance in the loop with all quantities referred to the mechanical side is
Z M T = B 2 l 2 R g + R E + j ω L E + j ω M M D + R M S + 1 j ω C M S + 2 S D ρ 0 c ( 1 J 1 ( 2 k a ) k a + j H 1 ( 2 k a ) k a )
(6.41)
where k   =   ω/c. The diaphragm ...
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Publisher Resources

ISBN: 9780128152287