© ISO 2016 Cinematography — Two track photographic analogue sound records on 16 mm motion picture prints — Positions and width dimensions Cinématographie — Enregistrement de deux pistes sonores optiqu[.]
INTERNATIONAL STANDARD ISO 7739 Second edition 2016-07-01 Cinematography — Two-track photographic analogue sound records on 16 mm motion-picture prints — Positions and width dimensions Cinématographie — Enregistrement de deux pistes sonores optiques analogues sur copies d’exploitation cinématographiques 16 mm — Positions et dimensions en largeur Reference number ISO 7739:2016(E) © ISO 2016 ISO 7739:2016(E) COPYRIGHT PROTECTED DOCUMENT © ISO 2016, Published in Switzerland All rights reserved Unless otherwise specified, no part o f 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 o f the requester ISO copyright o ffice Ch de Blandonnet • CP 401 CH-1214 Vernier, Geneva, Switzerland Tel +41 22 749 01 11 Fax +41 22 749 09 47 copyright@iso.org www.iso.org ii © ISO 2016 – All rights reserved ISO 7739:2016(E) Contents Page Foreword iv Scope Normative references Positions and dimensions Sound records Picture-sound displacement Track usage © ISO 2016 – All rights reserved iii ISO 7739:2016(E) Foreword ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies) The work o f 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 established has the right to be represented on that committee International organizations, governmental and non-governmental, in liaison with ISO, also take part in the work ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters o f electrotechnical standardization The procedures used to develop this document and those intended for its further maintenance are described in the ISO/IEC Directives, Part In particular the different approval criteria needed for the di fferent types o f ISO documents should be noted This document was dra fted in accordance with the editorial rules of the ISO/IEC Directives, Part (see www.iso.org/directives) Attention is drawn to the possibility that some o f the elements o f this document may be the subject o f patent rights ISO shall not be held responsible for identi fying any or all such patent rights Details o f any patent rights identified during the development o f the document will be in the Introduction and/or on the ISO list of patent declarations received (see www.iso.org/patents) Any trade name used in this document is in formation given for the convenience o f users and does not constitute an endorsement For an explanation on the meaning o f ISO specific terms and expressions related to formity assessment, as well as information about ISO’s adherence to the WTO principles in the Technical Barriers to Trade (TBT) see the following URL: Foreword - Supplementary in formation The committee responsible for this document is ISO/TC 36, Cinematography This second edition cancels and replaces the first edition (ISO 7739:1983), o f which it constitutes a minor revision iv © ISO 2016 – All rights reserved INTERNATIONAL STANDARD ISO 7739:2016(E) Cinematography — Two-track photographic analogue sound records on 16 mm motion-picture prints — Positions and width dimensions Scope T h i s I nternationa l Sta nda rd s p e ci fie s the l atera l p o s ition s and width d i men s ion s o f two -track variable area sound records on 16 mm motion-picture prints T h i s I nternationa l Standard a l s o s p e c i fie s the a re a s c an ne d b y the s ou nd repro ducer Normative references T he fol lowi ng i nd i s p en s able c u ments , i n whole or i n p ar t, are normatively re ference d i n th i s c u ment a nd are for its appl ic ation For date d re ference s , on ly the e d ition cite d appl ie s For u ndate d re ference s , the late s t e d ition o f the re ference d c u ment (i nclud i ng any amend ments) appl ie s ISO 4243, Cinematography — Picture image area and photographic sound record on 16 mm motion-picture release prints — Positions and dimensions Positions and dimensions The positions and dimensions of the two sound records shall be as shown in Figure and given in Table I n a l l o ther re s p e c ts , the s ou nd re cord s s l l comply with I S O 42 43 Sound records 4.1 Channel and channel recording and reproducing slit images shall be positioned in line at an angle ° ± ’ to the re ference edge o f the film 4.2 C hannel s hall b e reco rded in the reco rd neares t the o uter edge o f the film, as s ho wn in 4.3 The s ep tum b etween channel reco rds s hall b e e ffectively o p aque o n p rints Figure A lighter septum resulting from direct positive recordings being printed on reversal print materials shou ld no t b e c au s e for rej e c tion o f pri nts Picture-sound displacement T he pic tu re - s ou nd d i s placement s l l b e a s s p e ci fie d i n I S O 42 43 Track usage T he two tracks s p e c i fie d i n th i s I nternationa l Standard may b e u s e d for either relate d s tere ophon ic material or unrelated material When used for two-channel stereophonic program material, track shall be used for the left (as viewed from the auditorium) loudspeaker channel and track shall be used for the right (as viewed from the auditorium) loudspeaker channel It is recommended that the container and leader of the print having two sound records be labelled with the above information © ISO 2016 – All rights reserved ISO 773 : 01 6(E) Dimensions B and C were chosen to ensure separation of channel and channel signals upon repro duc tion P roj e c tor manu fac tu rers wi l l prob ab ly want to re duce the gua rd b and b e twe en cha n nel and chan nel s c an ne d are as as much as p o s s ible s o that the proj e c tor wi l l b e fu l ly comp atible with sound records bearing a single channel and made in accordance with ISO 4243 However, the crosstalk between them should not be less than 20 dB for stereophonic material, and not less than 26 dB for unrelated material Key track track reference edge f directio n o film travel area s canned by rep ro ducer Figure — Two photographic sound tracks on 16 mm motion-picture prints © ISO 2016 – All rights reserved ISO 773 9: 01 6(E) Table — Dimensions Dimension A ref B C D ref E ref F max G ref © ISO 2016 – All rights reserved mm 13,71 14,35 ± 0,05 14,60 ± 0,05 15,24 14,48 ± 0,03 0,05 1,80 in 0,540 0,565 ± 0,002 0,575 ± 0,002 0,600 0,570 ± 0,001 0,002 0,071 ISO 7739:2016(E) ICS 7.060.2 Price based on pages © ISO 2016 – All rights reserved