ISO 8590:1994

Cinematography — Audio records on 70 mm motion-picture release prints with magnetic stripes — Recorded characteristic

Specifies the recorded characteristic, i.e. the recorded relative magnetic flux level (in dB) as a function of frequency (in Hz), of audio records on 70 mm motion-picture release prints with magnetic striping when reproduced at the nominal speed of 24 frames per second.

Cinématographie — Enregistrements sonores sur copies d'exploitation sur film 70 mm à pistes magnétiques — Caractéristique d'enregistrement

General Information

• Status: Published
• Publication Date: 13-Jul-1994
• ICS: 37.060.20 - Motion picture films. Cartridges
• Technical Committee: ISO/TC 36 - Cinematography
• Drafting Committee: ISO/TC 36/WG 3 - Audio technology
• Current Stage: 9093 - International Standard confirmed
• Completion Date: 10-Jul-2023

Relations

• Revises: ISO 8590:1985 - Cinematography — Audio records on 35 mm and 70 mm motion-picture release prints with magnetic stripes — Recorded characteristics
• Effective Date: 15-Apr-2008

Standards Content (Sample)

INTERNATIONAL
STANDARD
Second edition
1994-08-01
Cinematography - Audio records on
70 mm motion-picture release prints with
magnetic stripes - Recorded
characteristic
- Enregis tremen ts sonores sur copies d ‘exploitation
Cinema tographie
sur film cin6matographique 70 mm 9 pistes magn&iques -
Caractkis tique d ‘enregis tremen t
Reference number
IS0 8590: 1994(E)

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IS0 8590: 1994(E)
Foreword
IS0 (the International Organization for Standardization) is a worldwide
federation of national standards bodies (IS0 member bodies). The work
of preparing International Standards is normally carried out through IS0
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. IS0
collaborates closely with the International Electrotechnical Commission
(IEC) 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 vote.
International Standard IS0 8590 was prepared by Technical Committee
lSO/TC 36, Cinematography.
This second edition cancels and replaces the first edition
(IS0 8590:1985), of which it constitutes a technical revision.
63 IS0 1994
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 the publisher.
International
Organization for Standardization
Case Postale
56 l CH-121 1 Genbve 20 l Switze rland
Printed in Switzerland
ii

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INTERNATIONAL STANDARD * ISO
IS0 8590: 1994(E)
Cinematography - Audio records on 70 mm
motion-picture release prints with magnetic stripes -
Recorded characteristic
where
1 Scope
is the recorded relative magnetic flux level,
This International Standard specifies the recorded
in decibels;
characteristic of audio records on 70 mm motion-
picture release prints with magnetic striping when
is the frequency, in hertz;
f
reproduced at the nominal speed of 24 frames per
second.
is a time constant with a value of
4
3 180 1s;
is a time constant with a value of 35 ps;
th
is a constant calculated to make Lo = 0 at
CO
2 Recorded characterist
...