Design and generation of test signals for measurement of electroacoustic systems, as well as for psychoacoustic testing is discussed. The main focus is on a digital generation of low-level harmonic test signals and an observation how subsequent DSP processing of those introduces a distortion. Mathematical analysis describes the origin of this distortion, and its audible perception is also examined. Further it is shown how the influence of various distorting components on audible perception can be minimized by using dither. Additionally, the generation of sweeping frequency signals and multitone signals is discussed.

Author: Kadlec, Frantisek
Affiliation: Czech Technical University, Faculty of Electrical Engineering, Prague, Czech Republic
AES Convention: 111 (November 2001) Paper Number: 5453
Publication Date: November 1, 2001 Import into BibTeX
Subject: Psychoacoustics and Audio Testing
Permalink: https://www.aes.org/e-lib/browse.cfm?elib=9877

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