BS ISO 4834:1997現行
Cinematography. Magnetic sound test films excluding striped release prints. Basic technical characteristics
出版：British Standards Institution
專家解讀視頻
Defines basic technical characteristics for magnetic sound test films for checking, adjusting and measurement of sound reproducing channels of dubbing motion-picture installations. In addition, it defines types and technical characteristics of magnetic test films made on 35 mm, 17.5 mm and 16 mm motion-picture films. Covers test films for checking, adjusting and measurement of inclination angle (azimuth) of the magnetic head gaps, output level balance of multi-channel systems, frequency response of the sound reproduction channel and non-uniformity of film velocity (flutter).
? British Standards Institution 2013
ISO 4834 : 1997(R2018) - Identical
ISO 4834 : 1997(R2018) - Identical
ISO 4834:1997 - Identical
