ISO/TS TECHNICAL SPECIFICATION 20065 First edition 2022-12 Acoustics Objective method for assessing the audibility of tones in noise Engineering method Acoustique - Méthode objective d'évaluation de I'audibilité des tonalités dans le bruit-Méthoded'expertise Reference number IS0/TS 20065:2022(E) ISO @IS02022 IS0/TS 20065:2022(E) COPYRIGHT PROTECTED DOCUMENT @ IS0 2022 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'smemberbodyinthe country oftherequester. ISO copyright office CP 401 · Ch. de Blandonnet 8 CH-1214 Vernier, Geneva Phone:+4122 749 0111 Email: copyright@iso.org Website: www.iso.org Published in Switzerland ii @ IS0 2022 - All rights reserved