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BS EN IEC 60645-3:2020

BS EN IEC 60645-3:2020

$102.76

Electroacoustics. Audiometric equipment – Test signals of short duration

Published By Publication Date Number of Pages
BSI 2020 20
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IEC 60645-3:2020 specifies a means of describing the physical characteristics, in terms of electrical waveforms, of audiometric reference and test signals of short duration and methods for their measurement. The object of this document is to ensure that audiometric stimuli of short duration are specified and measured in the same way and that the calibration of equipment using such signals is carried out using defined methods. This document does not describe the method of use of short-duration test signals. IEC 60645-3:2020 cancels and replaces the second edition published in 2007. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: a) new figures of reference signals; b) changes in definitions.

PDF Catalog

PDF Pages PDF Title
2 undefined
5 Annex ZA(normative)Normative references to international publicationswith their corresponding European publications
7 English
CONTENTS
8 FOREWORD
10 INTRODUCTION
11 1 Scope
2 Normative references
12 3 Terms and definitions
Figure 1 – Basic specification of an electrical reference click
13 Figure 2 – Illustration of the method of measurement of peak-to-peak equivalent signal levels
Figure 3 – Temporal characteristics of an electrical reference tone-burst
15 4 Reference signals
4.1 General
16 4.2 Reference click
4.3 Reference tone-burst
Figure 4 – Time domain specification of the electrical reference click
17 4.4 Reference broadband chirp
4.5 Reference octave-band chirps
Figure 5 – Temporal characteristics of the electrical reference broadband chirp
18 5 Calibration and measurement of short-duration signals
19 BibIiography

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BS EN IEC 60645-3:2020
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