ISO INTERNATIONAL STANDARD 16832 First edition 2006-08-01 Acoustics Loudness scaling by means of categories Acoustique - Mesurage de la sonie par échelles de categories Reference number ISO 16832:2006(E) XX ISO @ ISO 2006 IHS under Not for Resale ISO 16832:2006(E) PDF disclaimer This PDF file may contain embedded typefaces. In accordance with Adobe's licensing policy, this file may be printed or viewed but shall not be edited unless the typefaces which are embedded are licensed to and installed on the computer performing the editing. In downloading this file, parties accept therein the responsibility of not infringing Adobe's licensing policy. The ISO Central Secretariat accepts no liability in this area. Adobe is a trademark of Adobe Systems Incorporated. Details of the software products used to create this PDF file can be found in the General Info relative to the file; the PDF-creation parameters were optimizedforprinting.Every care has been taken to ensure thatthe file is suitableforuse by IsO member bodies. In the @ISO2006 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 Iso at the address below or Iso's member body in the country of the requester. ISO copyright office Case postale 56 · CH-1211 Geneva 20 Tel. + 41 22 749 01 11 Fax + 41 22 749 09 47 E-mail [email protected] Web www.iso.org Published in Switzerland @ ISO 2006 - All rights reserved Not for Resale ISO 16832:2006(E) Contents Page 1 Scope 2 Normative references 3 Terms and definitions 4 Category loudness scaling procedure 2 5 Evaluation of the category loudness scaling ... 6 5 AnnexA(informative)Exampleofareferencemethod 6 AnnexB(informative)Samplelevel sequences 9 Annex C (informative) Illustration of loudness scales 10 Bibliography .. Copyright InternatinalOrganizationfrsandardization'ghtsreserved ili IHS under nse from IHS Not for Resale ISO 16832:2006(E) Foreword IsO (the International Organization for Standardization) is a worldwide federation of national standards bodies (isO member bodies). The work of preparing International Standards is normally carried out through IsO technical committees. Each member body interested in a subject for which a technical committee has been non-governmental, in liaison with IsO, also take part in the work. IsO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. adopted by the technical committees are circulated to the member bodies for voting. Publication as an International Standard requires approval by at least 75 % of the member bodies casting a vote. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent ISO 16832 was prepared by Technical Committee ISO/TC 43, Acoustics. ISO 2006-Allrights reserved ISO16832:2006(E) Introduction The assessment of loudness function based on category loudness scaling is used when the evaluation of uncomfortable level), but for a knowledge over the entire individual auditory sensation area. Important fields of use are diagnostic evaluations, especially the evaluation of recruitment and fitting of hearing instruments. Standard sets the conditions for reliable measurement methods. V etworking pemited withoutlicense from IHS Not for Resale Not for Resale ISO 16832:2006(E) INTERNATIONALSTANDARD Acoustics Loudness scaling by means of categories 1 Scope This International Standard specifies basic methods for scaling loudness into categories for audiological applications. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated (including any amendments) applies. Iso 8253-1:1989, Acoustics Audiometric test methods - Part 1: Basic pure tone air and bone conduction threshold audiometry narrow-band test signal