ISO 21727:2016
ISO 21727:2016 Cinematography – Method of measurement of perceived loudness of short duration motion-picture audio material
CDN $82.00
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.
Edition
2
Published Date
2016-04-25
Status
PUBLISHED
Pages
6
Language
English
Format
Secure PDF
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Abstract
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.
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