ISO/IEC INTERNATIONAL STANDARD 19794-13 First edition 2018-03 Information technology Biometric data interchange formats - Part 13: Voice data Technologies de I'information - Formats d'échanges de données biométriques - Partie 13: Données relatives a la voix Reference number IS0/IEC 19794-13:2018(E) EC ISO @ IS0/IEC 2018 IS0/IEC 19794-13:2018(E) COPYRIGHT PROTECTED DOCUMENT IS0/IEC 2018 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: +41227490947 Email: [email protected] Website: www.iso.org Published in Switzerland ii @ IS0/IEC 2018 - All rights reserved IS0/IEC 19794-13:2018(E) Contents Page Foreword .iv Introduction .V 1 Scope 1 2 Normative references. .1 3 Terms and definitions 1 4 Abbreviated terms .5 5 Conformance. .6 6 Processes and identifiers 7 6.1 Capture processes and utterances 7 Introduction 6.1.1 7 6.1.2 Voice utterance. 7 6.1.3 Structure of a capture process. 7 6.2 Registered format type identifiers. 9 General voice data interchange format (BDB) 7 9 7.1 Overview 9 7.2 Conventions 10 7.3 Voice record general header. 10 Overview. 7.3.1 10 7.3.2 Version. 11 7.3.3 11 Session ID 7.3.4 Channel 11 7.3.5 Capture device 12 7.3.6 Transducer 12 7.3.7 Audio meta information 13 7.3.8 Capture process protocol 14 7.3.9 Extended vendor data 14 7.4 Voice representation header. 14 7.4.1 Overview. 14 7.4.2 Date and time. 14 7.4.3 15 Audio content. 7.4.4 Quality information 17 7.4.5 Signal enhancement. 18 7.4.6 Extended vendor data 19 7.5 Voice representation data. 19 7.6 Schema. 19 7.7 Example. 23 Annex A (normative) Conformance testing methodology .25 Bibliography .26 @ IS0/IEC 2018 - All rights reserved iii