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ISO 21727:2016

Cinematography - Method of measurement of perceived loudness of short duration motion-picture audio material

standard by International Organization for Standardization , 05/01/2016

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Full Description

ISO 21727:2016 specifies a method of measurement of short duration motion-picture sound that allows assessment of the subjective loudness and annoyance of the sound recording when replayed at the recommended replay level in rooms aligned with the characteristics of ISO 2969. The specified method of measurement assesses the entire duration of the sound recording, typically commercials and trailers that do not exceed 3 min in length, with suitable channel summation, frequency weighting and time integration. It does not specify a maximum recommended level for such material and is solely aimed at describing a measurement method.

NOTE Typical recording and replay levels are discussed in Annex A.

 

Product Details

Published:
05/01/2016
Number of Pages:
14
File Size:
1 file , 390 KB
Note:
This product is unavailable in Ukraine, Russia, Belarus
 

Document History

  1. ISO 21727:2016

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    Cinematography - Method of measurement of perceived loudness of short duration motion-picture audio material

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  2. ISO 21727:2004


    Cinematography - Method of measurement of perceived loudness of motion-picture audio material

    • Historical Version