ISO INTERNATIONAL STANDARD 22259 First edition 2019-04 Conference systems Equipment - Requirements Systemes de conference - Equipement - Exigences Reference number ISO 22259:2019(E) Tso @IS02019 IS0 22259:2019(E) COPYRIGHTPROTECTEDDOCUMENT @ IS0 2019 All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, 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 CP 401 : Ch. de Blandonnet 8 CH-1214 Vernier, Geneva Phone: +41 22 749 01 11 Fax: +41 22 749 09 47 Email: [email protected] Website: www.iso.org Published in Switzerland ii @ IS0 2019 - All rights reserved IS0 22259:2019(E) Contents Page Foreword ..V 1 Scope .1 2 Normative references 3 Terms and definitions 4 Overall conference system .5 4.1 General .5 4.2 Audio characteristics. 4.2.1 Latency .5 4.2.2 Sound pressure level 5 4.2.3 System input and output .6 4.2.4 Frequency response.. ..6 4.2.5 Distortion. .6 4.2.6 Noise and hum ..6 4.2.7 Level consistency .6 4.2.8 Interference. .6 4.3 Confidentiality. 4.4 Markings and symbols 7 4.5 Accessibility and usability 7 5 Discussion system 5.1 General 7 5.2 Discussion unit. 7 5.2.1 Required elements 7 5.2.2 Additional elements. 7 5.2.3 Optional features. .8 5.2.4 Autonomy .8 5.3 Microphone management. .8 5.4 Microphone routing. .8 5.5 Microphone processing ..8 6 Individual listening systems .8 6.1 General, ..8 6.2 Earclip headphone. 6.3 In-ear headphone 9 6.4 Headphones 6.5 Individual induction loop .9 7 Sound reinforcement system ..9 8 Interpreting system. ..10 9 Language distribution system ..10 10 Metadata system ..10 11 Voting system ..10 12 Camera system.. ..10 13 Display system. ..11 14 Identification/sign-in system ..11 15 Conference control system. ..11 16 Recording/archiving system ..11 17 Webcasting system ..12 18 Teleconferencing system. ..12 @ IS0 2019 - All rights reserved iii