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Convention Paper

Design, Generation and Analysis of Digital Test Signals

Authors: Kadlec, Frantisek

AES Convention 111 · Paper 5453 · November 2001

Abstract

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.

Details

Published in
AES Convention 111
AES Convention
111
Paper number
5453
Publication date
November 6, 2001
Session subject
Psychoacoustics and Audio Testing
Affiliation
Czech Technical University, Faculty of Electrical Engineering, Prague, Czech Republic (See document for exact affiliation information.)
Type
Convention Paper