IEC_61606-3-2008.pdf

IEC 61606-3Edition 1.0 2008-10INTERNATIONAL STANDARD Audio and audiovisual equipment Digital audio parts Basic measurement methods of audio characteristics Part 3:Professional use IEC 61606-3:2008(E)LICENSED TO MECON Limited.-RANCHI/BANGALOREFOR INTERNAL USE AT THIS LOCATION ONLY,SUPPLIED BY BOOK SUPPLY BUREAU.THIS PUBLICATION IS COPYRIGHT PROTECTED Copyright 2008 IEC,Geneva,Switzerland All rights reserved.Unless otherwise specified,no part of this publication may be reproduced or utilized in any form or by any means,electronic or mechanical,including photocopying and microfilm,without permission in writing from either IEC or IECs member National Committee in the country of the requester.If you have any questions about IEC copyright or have an enquiry about obtaining additional rights to this publication,please contact the address below or your local IEC member National Committee for further information.IEC Central Office 3,rue de Varemb CH-1211 Geneva 20 Switzerland Email:inmailiec.ch Web:www.iec.ch About the IEC The International Electrotechnical Commission(IEC)is the leading global organization that prepares and publishes International Standards for all electrical,electronic and related technologies.About IEC publications The technical content of IEC publications is kept under constant review by the IEC.Please make sure that you have the latest edition,a corrigenda or an amendment might have been published.?Catalogue of IEC publications:www.iec.ch/searchpub The IEC on-line Catalogue enables you to search by a variety of criteria(reference number,text,technical committee,).It also gives information on projects,withdrawn and replaced publications.?IEC Just Published:www.iec.ch/online_news/justpub Stay up to date on all new IEC publications.Just Published details twice a month all new publications released.Available on-line and also by email.?Electropedia:www.electropedia.org The worlds leading online dictionary of electronic and electrical terms containing more than 20 000 terms and definitions in English and French,with equivalent terms in additional languages.Also known as the International Electrotechnical Vocabulary online.?Customer Service Centre:www.iec.ch/webstore/custserv If you wish to give us your feedback on this publication or need further assistance,please visit the Customer Service Centre FAQ or contact us:Email:csciec.ch Tel.:+41 22 919 02 11 Fax:+41 22 919 03 00 LICENSED TO MECON Limited.-RANCHI/BANGALOREFOR INTERNAL USE AT THIS LOCATION ONLY,SUPPLIED BY BOOK SUPPLY BUREAU.IEC 61606-3Edition 1.0 2008-10INTERNATIONAL STANDARD Audio and audiovisual equipment Digital audio parts Basic measurement methods of audio characteristics Part 3:Professional use INTERNATIONAL ELECTROTECHNICAL COMMISSION XICS 33.160.30 PRICE CODEISBN 2-8318-1008-6 Registered trademark of the International Electrotechnical Commission LICENSED TO MECON Limited.-RANCHI/BANGALOREFOR INTERNAL USE AT THIS LOCATION ONLY,SUPPLIED BY BOOK SUPPLY BUREAU.2 61606-3 IEC:2008(E)CONTENTS FOREWORD.4 1 Scope.6 2 Normative references.6 3 Terms and definitions.7 4 Rated values.10 5 Measuring conditions.10 5.1 Environmental conditions.10 5.2 Power supply.10 5.3 Test signal frequencies.11 5.4 Standard settings.11 5.5 Preconditioning.11 5.6 Measuring instruments.11 5.6.1 General.11 5.6.2 Signal generator.11 5.6.3 Signal analyzer.12 6 Measurement methods.16 6.1 Overview.16 6.2 General characteristics.16 6.2.1 Linear response.16 6.2.2 Amplitude non-linearity.21 6.2.3 Noise.26 6.2.4 Interference products.28 6.2.5 Sampling effects.30 6.3 Input/output characteristics.32 6.3.1 Analogue input characteristics.32 6.3.2 Analogue output characteristics.34 6.3.3 Digital input characteristics.35 6.3.4 Digital output characteristics.36 Annex A(normative)Alternative measurement methods.37 Bibliography.41 Figure 1 Signal generator.11 Figure 2 Wideband amplitude.13 Figure 3 In-band amplitude.13 Figure 4 Out-of-band amplitude.13 Figure 5 Selective amplitude.13 Figure 6 Residual amplitude.13 Figure 7 Weighted amplitude.14 Figure 8 Gain method.16 Figure 9 Frequency response method.17 Figure 10 Maximum input and output amplitude method.18 Figure 11 Distortion-and-noise method.21 Figure 12 Distortion and noise versus frequency method.21 Figure 13 Distortion and noise versus amplitude method.22 LICENSED TO MECON Limited.-RANCHI/BANGALOREFOR INTERNAL USE AT THIS LOCATION ONLY,SUPPLIED BY BOOK SUPPLY BUREAU.61606-3 IEC:2008(E)3 Figure 14 Individual harmonic distortion method.22 Figure 15 Total harmonic distortion method.22 Figure 16 Largest spurious signal method.23 Figure 17 Intermodulation method.23 Figure 18 Intermodulation method.24 Figure 19 Amplitude-dependent gain method.25 Figure 20 Intrinsic signal modulation products method.25 Figure 21 Low-amplitude noise modulation method.26 Figure 22 Idle-channel noise method.26 Figure 23 Idle-channel noise spectrum method.27 Figure 24 Dynamic range method.27 Figure 25 Out-of-band noise ratio method.27 Figure 26 Channel