標準號：BS 5550-7.4.2-2000
中文標準名稱：電影攝影技術(shù).制片與放映.聲音.商業(yè)廣告和預告片的*大錄音級規(guī)范
英文標準名稱：Cinematography - Production and presentation - Sound - Specification for maximum recording levels for commercials and trailers - Subsection 7.4.2: Sound - Specification for maximum recording levels for commercials and trailers
標準類型：N40
發(fā)布日期：2000/9/15 12:00:00
實施日期：2000/9/15 12:00:00
中國標準分類號：N40
國際標準分類號：37.060.99
適用范圍：This British Standard specifies maximum sound recording levels for cinema commercials and trailers. The specified method of measurement is suited to the motion-picture environment where the sound recording is measured over its duration, with suitable frequency weighting and integration. NOTE 1 The method of measurement specified allows assessment of the subjective loudness and annoyance of the sound recording when replayed at the recommended replay level in rooms calibrated in accordance with BS 5550-7.4.1:1990. NOTE 2 Typical recording and replay levels are discussed in annex A.