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Exponential swept-sine signals are very often used to analyze nonlinear audio systems. A reexamination of this methodology shows that a synchronization procedure is necessary for the proper analysis of higher harmonics. An analytical expression of spectra of the swept-sine signal is derived and used in the deconvolution of the impulse response. Matlab code for generation of the synchronized swept-sine, deconvolution, and separation of the impulse responses is given. This report provides a discussion of some application issues and an illustrative example of harmonic analysis of current distortion of a woofer. An analysis of the higher harmonics of the current distortion of a woofer is compared using both the synchronized and the non-synchronized swept-sine signals.
Author (s): Novak, Antonin; Lotton, Pierrick; Simon, Laurent
Affiliation:
Laboratoire d’Acoustique de l’Université du Maine, Le Mans, France
(See document for exact affiliation information.)
Publication Date:
2015-10-06
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Novak, Antonin; Lotton, Pierrick; Simon, Laurent; 2015; Synchronized Swept-Sine: Theory, Application, and Implementation [PDF]; Laboratoire d’Acoustique de l’Université du Maine, Le Mans, France; Paper ; Available from: https://aes2.org/publications/elibrary-page/?id=18042
Novak, Antonin; Lotton, Pierrick; Simon, Laurent; Synchronized Swept-Sine: Theory, Application, and Implementation [PDF]; Laboratoire d’Acoustique de l’Université du Maine, Le Mans, France; Paper ; 2015 Available: https://aes2.org/publications/elibrary-page/?id=18042
@article{novak2015synchronized,
author={novak antonin and lotton pierrick and simon laurent},
journal={journal of the audio engineering society},
title={synchronized swept-sine: theory, application, and implementation},
year={2015},
volume={63},
issue={10},
pages={786-798},
month={october},}