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CST-RT-015-2007
[ACTIVE]

Sound/Picture Synchronization of 35 mm Release Prints

Synchronisation son/image des copies d’exploitation 35 mm

Metadata

Publisher
CST
Doc Type
Recommendation
Language
French
Translation
Title and abstract translated from French by MSRBot.io
Abstract
The purpose of this document is to define the positioning offset between the start of the picture and the start of the sound on the leaders of 35 mm release prints, so as to ensure sound/picture synchronization in projection.
Abstract (French)
Le présent document a pour objet de définir l’écart de positionnement entre le début de l’image et le début du son sur les amorces des copies d’exploitation 35 mm ; afin d’assurer la synchronisation son/image en projection.
Publication Date
2007-01-01
Link
https://cst.fr/download/33/recommandations-techniques/991/cst-rt-015.pdf
Keyword(s)
35mm, Lip Sync, Film
Details
French-language CST recommendation specifying the picture-to-sound offset on the leaders of 35 mm release prints: 20 ± ½ frames from 1 April 2007, with sound read ½ frame ahead of picture. Also asks post-production to validate sound/picture sync in a mixing auditorium with the mixer at least 7 m from the screen, to counter sync errors accumulated in digital workflows.
Latest version of CST RT 015

Document Versions — CST RT 015

Normative Reference(s)

  • ISO.2939 — Norme internationale ISO 2939 « Champ d’image et piste sonore photographique sur les copies d’exploitation 35mm – Emplacement et dimensions EXTERNAL
  • ISO.4241 — Norme internationale ISO 4241 « Amorces pour copies d’exploitation et repères d’enchaînement » EXTERNAL

Bibliographic Reference(s)

  • CST.NT001 — Note technique CST NT 001 « Synchronisation son/image des copies d’exploitation 35 mm » EXTERNAL
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CST-RT-015-2007, Sound/Picture Synchronization of 35 mm Release Prints. Available at https://cst.fr/download/33/recommandations-techniques/991/cst-rt-015.pdf
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CST-RT-015-2007, Sound/Picture Synchronization of 35 mm Release Prints. Available at https://cst.fr/download/33/recommandations-techniques/991/cst-rt-015.pdf
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CST-RT-015-2007, Sound/Picture Synchronization of 35 mm Release Prints. Available at https://cst.fr/download/33/recommandations-techniques/991/cst-rt-015.pdf
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CST-RT-015-2007, Sound/Picture Synchronization of 35 mm Release Prints. Available at https://cst.fr/download/33/recommandations-techniques/991/cst-rt-015.pdf

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CST-RT-015-2007, Sound/Picture Synchronization of 35 mm Release Prints. Available at https://cst.fr/download/33/recommandations-techniques/991/cst-rt-015.pdf
Snippet:
<span class="citation"><cite>CST-RT-015-2007</cite>, Sound/Picture Synchronization of 35 mm Release Prints. Available at <a href="https://cst.fr/download/33/recommandations-techniques/991/cst-rt-015.pdf" target="_blank" rel="noopener">https://cst.fr/download/33/recommandations-techniques/991/cst-rt-015.pdf</a></span>
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Preview:
CST-RT-015-2007, Sound/Picture Synchronization of 35 mm Release Prints. Available at https://cst.fr/download/33/recommandations-techniques/991/cst-rt-015.pdf
Snippet:
<span class="citation"><cite>CST-RT-015-2007</cite>, Sound/Picture Synchronization of 35 mm Release Prints. Available at <a href="https://cst.fr/download/33/recommandations-techniques/991/cst-rt-015.pdf" target="_blank" rel="noopener">https://cst.fr/download/33/recommandations-techniques/991/cst-rt-015.pdf</a></span>

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Preview:
CST-RT-015-2007, Sound/Picture Synchronization of 35 mm Release Prints
url: https://cst.fr/download/33/recommandations-techniques/991/cst-rt-015.pdf
Snippet:
<li>
<cite id="bib-cst-rt015-2007">CST-RT-015-2007</cite>, Sound/Picture Synchronization of 35 mm Release Prints
<a>https://cst.fr/download/33/recommandations-techniques/991/cst-rt-015.pdf</a>
</li>
Undated variant
Preview:
CST-RT-015-2007, Sound/Picture Synchronization of 35 mm Release Prints
url: https://cst.fr/download/33/recommandations-techniques/991/cst-rt-015.pdf
Snippet:
<li>
<cite id="bib-cst-rt015">CST-RT-015-2007</cite>, Sound/Picture Synchronization of 35 mm Release Prints
<a>https://cst.fr/download/33/recommandations-techniques/991/cst-rt-015.pdf</a>
</li>