Eliminating transducer distortion in acoustic measurements

Finn T. Agerkvist, Antoni Torras Rosell, Richard Ian McWalter

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review


This paper investigates the in uence of nonlinear components that contaminate the linear response of acoustic transducer, and presents a method for eliminating the in uence of nonlinearities in acoustic measurements. The method is evaluated on simulated as well as experimental data, and is shown to perform well even in noisy conditions. The limitations of the Total Harmonic Distortion, THD, measure is discussed and a new distortion measure, Total Distortion Ratio, TDR, which more accurately describes the amount of nonlinear power in the measured signal, is proposed.
Original languageEnglish
Title of host publicationProceedings of the 137th AES Convention
PublisherAudio Engineering Society
Publication date2014
Article numberConvention Paper 9204
ISBN (Print)9781634397483
Publication statusPublished - 2014
EventAES 137th Convention - Los Angeles, CA, United States
Duration: 9 Oct 201412 Oct 2014


ConferenceAES 137th Convention
CountryUnited States
CityLos Angeles, CA

Cite this

Agerkvist, F. T., Torras Rosell, A., & McWalter, R. I. (2014). Eliminating transducer distortion in acoustic measurements. In Proceedings of the 137th AES Convention (pp. 824-833). [Convention Paper 9204] Audio Engineering Society.