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SMPTE 183M

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Motion-Picture Film – Photographic Audio Level Test Films – Measurement of Photoelectric Output Factor (R2005)

Published by	Publication Date	Number of Pages
SMPTE	01/01/1996		0

Category: SMPTE

Description

SMPTE 183M – Motion-Picture Film – Photographic Audio Level Test Films – Measurement of Photoelectric Output Factor (R2005)

This standard specifies the method of measurement of the photoelectric output factor of single-track photographic audio level test films in all film gauges, using a calibrating audio reproducer. It is applicable to both variable-area and variable-density audio records.The standard also specifies the intended performance of a calibrating audio reproducer. Calibrated audio-level test films are employed to measure the precise output level of photographic audio reproducers and the photoelectric output factor of different audio records, and to establish a reference level on a standard program-level meter appropriately chosen for the installation.