ISO INTERNATIONAL STANDARD 7832 Secondedition 2014-10-01 Cinematography Photoelectric output factor of photographic-type audio-level test films Measurement and calibration CinématographieFacteur de sortiephotoelectrique des films d'essai de niveau sonore de type optique - Mesurage et étalonnage Reference number ISO 7832:2014(E) ISO @ IS0 2014 IS0 7832:2014(E) COPYRIGHTPROTECTEDDOCUMENT @ISO2014 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized otherwise in any form 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 Case postale 56 : CH-1211 Geneva 20 Tel. + 41 22 749 01 11 Fax + 41 22 749 09 47 E-mail copyright@iso.org Web www.iso.org Published in Switzerland ii @ IS0 2014 - All rights reserved IS0 7832:2014(E) Contents Page Foreword ..iv 1 Scope .1 2 Normative references 3 Terms, definitions, and symbols 4 Method of measurement 5 Method of calibration ..2 5.1 DC method. .2 5.2 ACmethod ..2 6 Calibration procedure. ..2 7 Calibrating reproducer ..2 Annex A (normative) DC and AC calibration ..6 @ IS0 2014 - All rights reserved iii