IEC 60268-9 : 1.0

Table of Contents

FOREWORD
PREFACE
Clause
1 Scope
2 Object
CHAPTER I: CONDITIONS FOR SPECIFICATIONS AND MEASUREMENT
3 Conditions
4 General
CHAPTER II: CHARACTERISTICS TO BE SPECIFIED AND RELEVANT
            METHODS OF MEASUREMENT
SECTION ONE - ARTIFICIAL REVERBERATION EQUIPMENT
5 General
6 Reverberation time
7 Various kinds of reverberation time
8 Linearity
9 Frequency response
10 Initial time delay
11 Additional characteristics
SECTION TWO - TIME DELAY DEVICES
12 General
13 Delay time
14 Echo
15 Echo time
16 Ambient acoustical noise
17 Safe life expectancy
SECTION THREE - FREQUENCY SHIFT DEVICES
18 General

Abstract

Applies to devices intended to give reverberation, time delay or frequency shift to signals of an acoustical origin. It covers the types of devices commonly employed to achieve special effects on sound recording, broadcasting and public-address systems. Provides details of the special characteristics and corresponding methods of measurement to be used for artificial reverberation, time delay and frequency shift equipment.

General Product Information

Published
Document Type	Standard
Status	Current
Publisher	International Electrotechnical Committee
Pages
ISBN
Committee	TC 84
Supersedes	IEC 60089 : 1957