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1、INTERNATIONAL STANDARD ISO 7343 Second edition 1993-05-15 Cinematography - Two-track photographic Sound records on 35 mm motion-picture prints - Positions and width dimensions Cinbma tographie - Enregistrement de deux pistes sonores optiques sur copies dexploita tion cin6ma tographiques 35 mm - Posi
2、tions et dimensions en largeur Reference number ISO 7343:1993(E) Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/26/2007 03:02:54 MDTNo reproduction or networking permitted without licen
3、se from IHS -,-,- ISO 7343:1993(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. Esch member bod
4、y 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 Electrote
5、chnical Commission (1 EC) on all matters of electrotechnical standardization. Draft International Standards 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 v
6、ote. International Standard ISO 7343 was prepared by Technical Committee ISO/TC 36, Cinematography. This second edition cancels and replaces the first edition (ISO 7343:1983), of which it constitutes a technical revision. 0 ISO 1993 All rights reserved. No part of this publication may be reproduced
7、or utilized in any form or by any means, electronie or mechanical, including photocopying and microfilm, without per- mission in writing from the publisher. International Organization for Standardization Case Postale 56 l CH-l 211 Geneve 20 l Switzerland Printed in Switzerland ii Copyright Internati
8、onal Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/26/2007 03:02:54 MDTNo reproduction or networking permitted without license from IHS -,-,- INTERNATIONAL STANDARD ISO 7343:1993(E) Cinematography - Two-track
9、 photographic Sound records on 35 mm motion-picture prints - Positions and width dimensions 1 Scope 3 Positions and dimensions 1.1 This International Standard specifies the lateral positions and width dimensions of two-track variable area Sound records on 35 mm motion-picture prints. 1.2 This Intern
10、ational Standard specifies the area scanned in the Sound reproducer. 2 Normative reference The following Standard contains provisions which, through reference in this text, constitute provisions of this International Standard. At the time of publi- cation, the edition indicated was valid. All Standa
11、rds are subject to revision, and Parties to agreements based on this International Standard are encouraged to investigate the possibility of applying the most re- cent edition of the Standard indicated below. Mem- bers of IEC and ISO maintain registers of currently valid International Standards. ISO
12、 2939:1986, Cinematography - Picture image area and photographic Sound record on 35 mm motion-picture release prints - Position and dimen- sions. The positions and dimensions of the two Sound rec- ords shall be as shown in figure 1 and given in table 1. In all other respects, the Sound records shall
13、 comply with the requirements of ISO 2939. 4 Sound records 4.1 Channel 1 and channel 2 recording and repro- ducing slit images shall be positioned in line at an an- gle of 90 + 5 to the reference edge of the film. 4.2 Channel 2 shall be recorded in the record near- est the outer edge of the film, as
14、 shown in figure 1. 4.3 The Septum between channel records shall be effectively opaque on prints. A lighter Septum resulting from direct positive re- cordings being printed on reversal print materials shall not be Cause for rejection of prints. 5 Picture-Sound displacement The picture-Sound displace
15、ment shall be as specified in ISO 2939. Table 1 - Dimensions Dimension mm A ref. B C D ref. E ref. F ref. G max. 5,20 6,04 * 0,05 6,30 f 0,05 7,14 6,18 f 0,03 2,13 0,05 in 0,205 0,238 & 0,002 0,248 f 0,002 0,281 0,243 f 0,001 0,084 0,002 Copyright International Organization for Standardization Provi
16、ded by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/26/2007 03:02:54 MDTNo reproduction or networking permitted without license from IHS -,-,- 6 Track usage The two tracks specified in this International Standard may be used for either stereophonically
17、 related pro- gram material or separate, unrelated material such as two languages. When used for two-channel stereophonic program material, it is common practice to employ an amplitude-Phase matrix encoding wherein track 1 is used for the left total Signal and track 2 for the right total Signal. A l
18、eft-only Signal will then nominally modulate only track 1 and be presented over the left modulate track 2 and be presented over the right Screen loudspeaker. NOTES 1 The Container and leader of the print having two Sound records should be labelled with the above information. 2 Dimensions B and C wer
19、e Chosen to ensure Separation of the channel 1 and channel 2 Signals upon reproduction. Projector manufacturers will probably want to reduce the guard band on the photosensitive device between the channel 1 and channel2 scanned areas as much as possible so that the projector will be fully compatible
20、 with Sound records bearing a Single channel and made in accordance Screen loudspeaker and a right-only Signal will only with ISO 2939. Track 1 (Left total) Track 2 (Right total) Note 1 Direction of film travet *_ Ref erence edge , NOTE - The area scanned by the reproducer represents the area illumi
21、nated by the scanning beam and the effective active area of the photo-sensitive device. Figure 1 - Two photographic Sound tracks on 35 mm motion-picture prints 2 Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/997254
22、5001 Not for Resale, 04/26/2007 03:02:54 MDTNo reproduction or networking permitted without license from IHS -,-,- This page intentionaliy lefi blank Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for
23、 Resale, 04/26/2007 03:02:54 MDTNo reproduction or networking permitted without license from IHS -,-,- This page intentionally lef? blank Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/
24、26/2007 03:02:54 MDTNo reproduction or networking permitted without license from IHS -,-,- This page intentionally lefi blank Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/26/2007 03:0
25、2:54 MDTNo reproduction or networking permitted without license from IHS -,-,- ISO 7343:1993(E) UDC 778.534.452:771.531.351 Descriptors: cinematography, (location), dimensions, width. motion-picture film, motion-picture film 35 mm, Sound recording, Sound track, specifications, Position Price based on 2 pages Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/26/2007 03:02:54 MDTNo reproduction or networking permitted without license from IHS -,-,-