Sound power level as a measure of efficiency of Distributed Mode Loudspeakers

Distributed Mode Loudspeakers (DMLs) are characterized by properties, which make them significantly different from conventional electrodynamic loudspeakers. Such differences occur due to the design assumptions of the DML. In this work, a series of SPL measurements of DML in a reverberation chamber h...

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Bibliographic Details
Published in:International Journal of Electronics and Telecommunications
Main Authors: Karol Czesak, Piotr Kleczkowski
Format: Article in Journal/Newspaper
Language:English
Published: Polish Academy of Sciences 2024
Subjects:
dml
sound power level
loudspeaker characteristics
loudspeaker measurements
reverberation chamber
Electrical engineering. Electronics. Nuclear engineering
TK1-9971
Telecommunication
TK5101-6720
DML
Online Access:https://doi.org/10.24425/ijet.2024.149581
https://doaj.org/article/14fd4348dae741b89d6cf10af65ff04d
Description
Summary:Distributed Mode Loudspeakers (DMLs) are characterized by properties, which make them significantly different from conventional electrodynamic loudspeakers. Such differences occur due to the design assumptions of the DML. In this work, a series of SPL measurements of DML in a reverberation chamber has been carried out, which were compared with those for an electrodynamic loudspeaker. Sound power level was determined from the results of conducted measurements for both types of transducers. It was calculated in 1/3 octave bands, for the pink noise excitation. The sound power level obtained with these two different types of loudspeakers is not significantly differing between each other.

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