BS 5550-7.4.2-2000
电影摄影技术.制片与放映.声音.商业广告和预告片的最大录音级规范
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
- 标准号
- BS 5550-7.4.2-2000
- 发布日期
- 2000年09月15日
- 实施日期
- 2000年09月15日
- 废止日期
- 无
- 中国标准分类号
- N40
- 国际标准分类号
- 37.060.99
- 发布单位
- GB-BSI
- 被代替标准
- 99/703287 DC-1999
- 适用范围
- 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.