BS ISO 7832:2014
Cinematography. Photoelectric output factor of photographic-type audio-level test films. Measurement and calibration
Cinematography. Photoelectric output factor of photographic-type audio-level test films. Measurement and calibration
- Статус документа:
- Действующий
- Формат:
- Электронный (PDF)
- Дата публикации:
- 31 октября 2014 г.
- ICS:
- 37.060.20
- SKU:
- BS ISO 7832:2014
Abstract
1 Scope This International Standard specifies a method of measuring and calibrating the photoelectric output factor of single channel analogue photographic-type audio-level test films in all gauges, using a calibrating sound reproducer. It is applicable to both variable area- and variable density-type sound records with a silver audio track. It also specifies the performance of a calibrating audio reproducer. Calibrated audio-level test films are employed to measure the precise output level of photographic sound reproducers and the photoelectric output factor of different sound records. They are also employed to establish a reference level on a standard program level meter, should that be appropriate for the installation in use.
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