BS ISO 2969:2015 BSl Standards Publication Cinematography B-chain electro-acoustic reponse of motion-picture control rooms and indoor theatres - Specifications and measurements bsi. ..making excellence a habit. BRITISH STANDARD BS ISO2969:2015 National foreword This British Standard is the UK implementation of Is0 2969:2015.It supersedes BS 5550-7.4.1:1990 which is withdrawn. The UK participation in its preparation was entrusted to Technical Committee CPW/36, Cinematography. A list of organizations represented on this committee can be obtained on request to its secretary. This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. @The British Standards Institution 2015.Published by BSI Standards Limited 2015 ISBN 978 0580847547 ICS37.060.99 Compliance with a British Standard cannot confer immunityfrom legal obligations. This British Standard was published under the authority of the StandardsPolicy andStrategyCommitteeon30 June2015. Amendments issued since publication Date Textaffected BS ISO 2969:2015 INTERNATIONAL ISO STANDARD 2969 Third edition 2015-06-01 Cinematography B-chain electro- acoustic reponse of motion-picture control rooms and indoor theatres Specifications and measurements Reponse électro-acoustique dela chaine Bdes salles de controle et d'exploitationcinematographique-Specificationsetmesurages Referencenumber IS0 2969:2015(E) TSO @ISO2015 BSISO2969:2015 IS0 2969:2015(E) COPYRIGHTPROTECTEDDOCUMENT ISo 2015,Published in Switzerland All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized otherwise in any form or by any means, electronic ormechanical, including photocopying,or posting on the internet or an intranet, without prior written permission. Permission can be requested from either ISo at the address below or ISo's member body in the country of the requester. ISO copyright office Ch. de Blandonnet 8 . CP 401 CH-1214 Vernier, Geneva, Switzerland Tel. +41 22 749 01 11 Fax +41 22 749 09 47 [email protected] www.iso.org ii ISO2015-Allrightsreserved BSISO 2969:2015 IS0 2969:2015(E) Contents Page Foreword ..iv Introduction. 1 Scope. 2 Terms and definitions 3 Methodofmeasurement 4 Characteristicamplituderesponseswithrespecttofrequency Annex A (informative)Factors outsidethe scope ofthisInternational Standard ..8 Bibliography ..17 @IS0 2015 -All rights reserved iii BSISO2969:2015 IS0 2969:2015(E) Foreword Iso (the International Organization for Standardization) is a worldwide federation of national standards bodies (so member bodies).The work of preparing International Standards is normally carried out throughIsOtechnicalcommittees.Eachmemberbodyinterestedinasubjectforwhichatechnical committee has been established has the right to be represented on that committee. International organizations, governmental and non-governmental, in liaison with Iso, also take part in the work. ISo collaboratescloselywiththeInternationalElectrotechnicalCommission(IEC)onallmattersof electrotechnical standardization. 02/ The procedures used to develop this document and those intended for its further maintenance are described in the ISo/IEc Directives, Part 1. In particular the different approval criteria needed for the differenttypes ofIsodocuments shouldbenoted.Thisdocumentwasdrafted inaccordancewiththe editorial rules of the Iso/IEC Directives, Part 2 (see www.iso.org/directives) Attentionisdrawntothepossibilitythatsomeoftheelementsofthisdocumentmaybethesubjectof patent rights.IsO shall not be held responsible foridentifying any or all such patent rights. Details of any 09 patent rights identified during the development of the document will be in the Introduction and/or on JO the Iso list of patent declarations received (see www.iso.org/patents). Any trade name used in this document is information given for the convenience of users and does not constituteanendorsement. Jej For an explanation on the mean