AES E-Library

C. Ferekidis, "Acoustic Power Based Evaluation of Loudspeaker Distortion Measurements," Paper 9914, (2018 May.). doi: C. Ferekidis, "Acoustic Power Based Evaluation of Loudspeaker Distortion Measurements," Paper 9914, (2018 May.). doi:
Abstract: Traditionally, drive-unit related distortion figures are evaluated “on-axis.” This method leads to straightforward results as long as the frequency of the analyzed distortion component stays below the driver’s modal break-up region. When the distortion component is entering the drive-unit’s break-up region an on-axis based distortion analysis approach can become difficult if not meaningless. Therefore an alternative method is proposed which makes use of acoustic harmonic distortion sound power values, instead of sound pressure levels acquired in a single observation point (on-axis). These acoustic power values are derived from high resolution directivity data for the fundamental-, 2nd- and 3rd-harmonic-distortion components. Results are shown for different kinds of drive-units and the implications are discussed.

@article{ferekidis2018acoustic,
author={ferekidis, charalampos},
journal={journal of the audio engineering society},
title={acoustic power based evaluation of loudspeaker distortion measurements},
year={2018},
volume={},
number={},
pages={},
doi={},
month={may},} @article{ferekidis2018acoustic,
author={ferekidis, charalampos},
journal={journal of the audio engineering society},
title={acoustic power based evaluation of loudspeaker distortion measurements},
year={2018},
volume={},
number={},
pages={},
doi={},
month={may},
abstract={traditionally, drive-unit related distortion figures are evaluated “on-axis.” this method leads to straightforward results as long as the frequency of the analyzed distortion component stays below the driver’s modal break-up region. when the distortion component is entering the drive-unit’s break-up region an on-axis based distortion analysis approach can become difficult if not meaningless. therefore an alternative method is proposed which makes use of acoustic harmonic distortion sound power values, instead of sound pressure levels acquired in a single observation point (on-axis). these acoustic power values are derived from high resolution directivity data for the fundamental-, 2nd- and 3rd-harmonic-distortion components. results are shown for different kinds of drive-units and the implications are discussed.},}

TY - paper
TI - Acoustic Power Based Evaluation of Loudspeaker Distortion Measurements
SP - EP -
AU - Ferekidis, Charalampos
PY - 2018
JO - Journal of the Audio Engineering Society
IS -
VO -
VL -
Y1 - May 2018 TY - paper
TI - Acoustic Power Based Evaluation of Loudspeaker Distortion Measurements
SP - EP -
AU - Ferekidis, Charalampos
PY - 2018
JO - Journal of the Audio Engineering Society
IS -
VO -
VL -
Y1 - May 2018
AB - Traditionally, drive-unit related distortion figures are evaluated “on-axis.” This method leads to straightforward results as long as the frequency of the analyzed distortion component stays below the driver’s modal break-up region. When the distortion component is entering the drive-unit’s break-up region an on-axis based distortion analysis approach can become difficult if not meaningless. Therefore an alternative method is proposed which makes use of acoustic harmonic distortion sound power values, instead of sound pressure levels acquired in a single observation point (on-axis). These acoustic power values are derived from high resolution directivity data for the fundamental-, 2nd- and 3rd-harmonic-distortion components. Results are shown for different kinds of drive-units and the implications are discussed.