Title
New methods for parameterization of Distributed Mode Loudspeakers
Authors
Year of publication
2024
Published in
Article type
scientific article
Publication language
english
Keywords
EN
- DML
- loudspeaker phase
- loudspeaker characteristics
- loudspeaker measurements
- loudspeaker parametrization
Abstract
EN Distributed Mode Loudspeakers (DMLs) operate by bending oscillations of a plate with specifically designed dimensions and stiffness. They exhibit specific transfer functions, which need to be described with a series of amplitude-frequency characteristics measured at points located across a measurement hemisphere. The measurement results of the same transducer, taken at closely spaced points, can significantly differ from each other. The aim of this work was to develop numerical parameters that qualitatively describe the amplitude-frequency characteristics of a DML measured at individual points. These parameters, plotted in a way showing their relation to directions, are intended to identify the directions where the radiation of a DML exhibits properties closest to desired ones. The formulated quantities are based on a parameterization model developed for conventional pistonic loudspeakers, specifically relating to the flatness of amplitude responses, for which the correlation with listener preferences has been observed.
Pages (from - to)
2024315-1 - 2024315-12
Comments
Article number: 2024315
License type
CC BY (attribution alone)
Open Access Mode
open journal
Open Access Text Version
final published version
Full text of article
Access level to full text
public
Ministry points / journal
70
System created by Poznań University of Technology
and Poznan Supercomputing and Networking Center
Log in through eKonto to add to SIS