ISO 21727:2004 电影技术 活动 图片声频材料的可感觉燥声的测量方法

标准编号：ISO 21727:2004

中文名称：电影技术 活动 图片声频材料的可感觉燥声的测量方法

英文名称：Cinematography — Method of measurement of perceived loudness of motion-picture audio material

发布日期：2004-10

标准范围

ISO 21727:2004规定了一种测量电影声音的方法，该方法允许在符合ISO 2969特征的房间中以推荐的重放级别重放时，评估录音的主观响度和烦扰度。指定的测量方法通过适当的通道总和、频率加权和时间积分来评估录音的整个持续时间。

ISO 21727:2004 specifies a method of measurement of 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 with suitable channel summation, frequency weighting and time integration.

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