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Loudspeaker equalization for auditory research

Behavior Research Methods volume 39, pages 133–136 (2007)Cite this article

Abstract

The equalization of loudspeaker frequency response is necessary to conduct many types of well-controlled auditory experiments. This article introduces a program that includes functions to measure a loudspeaker’s frequency response, design equalization filters, and apply the filters to a set of stimuli to be used in an auditory experiment. The filters can compensate for both magnitude and phase distortions introduced by the loudspeaker. A MATLAB script is included in the Appendix to illustrate the details of the equalization algorithm used in the program.

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Affiliations

  1. Army Research Laboratory, Aberdeen Proving Ground, Maryland

    Justin A. MacDonald & Phuong K. Tran

Authors
  1. Justin A. MacDonald
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  2. Phuong K. Tran
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Correspondence to Justin A. MacDonald.

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MacDonald, J.A., Tran, P.K. Loudspeaker equalization for auditory research. Behav Res 39, 133–136 (2007). https://doi.org/10.3758/BF03192851

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  • DOI: https://doi.org/10.3758/BF03192851

Keywords

  • Frequency Response
  • Impulse Response
  • Phase Response
  • Infinite Impulse Response
  • Phase Distortion