標準號：BS 6840-1-1987
中文標準名稱：音響系統設備.第1部分:設備性能用一般特性的規定和測量方法
英文標準名稱：Sound system equipment - Methods for specifying and measuring general characteristics used for equipment performance
標準類型：M72
發布日期：1987/4/30 12:00:00
實施日期：1987/4/30 12:00:00
中國標準分類號：M72
國際標準分類號：33.160.30
適用范圍：This standard applies to sound systems of any kind, and to the parts of which they are composed or which are used as auxiliaries to such systems. This standard deals with the determination of the performance of sound system equip-ment, the comparison of these types of equipment and the determination of their proper practical application, by listing the characteristics which are useful for their specification and laying down uniform methods of measurements for these characteristics. The standard is confined to a description of the different characteristics and the relevant methods of measurement; it does not in general specify performance (except in Part 10). The complete standard consists of the following parts, in which the characteristics of various parts of sound systems and their methods of measurement are specified; some parts include preferred values: — Part 1: General. (Uniform characteristics and methods of measurement) — Part 2: Explanation of General Terms. (Explanation of general terms and calculation methods) — Part 3: Sound System Amplifiers. (Amplifiers forming part of a sound system for professional and domestic applications) — Part 4: Microphones. (Microphones in professional and domestic applications) — Part 5: Loudspeakers. (Loudspeakers in professional and domestic applications, treated as entirely passive elements) — Part 6: Auxiliary Passive Elements. (Attenuators, transformers, filters and equalizers, applied as separate units to be combined with other separate sound system units) — Part 7: Headphones and Headsets. (Headphones and headsets intended to be used on the human ear) — Part 8: Automatic Gain Control Devices. (Limiters and compressors) — Part 9: Artificial Reverberation, Time Delay and Frequency Shift Equipment. (Devices commonly employed to achieve special effects in sound systems) — Part 10: Programme Level Meters (Peak programme meters and vu-indicators) — Part 11: Connectors for the Interconnection of Sound System Components. (Application of connectors for the interconnection between parts of a sound system) — Part 12: Circular Connectors for Broadcast and Similar Use. (Application of connectors for the interconnection between parts of a broad-cast or similar professional system) — Part 13: Listening Test on Loudspeakers. (Listening tests and objective methods for rating the quality of the transmis-sion systems) — Part 14: Circular and Elliptical Loudspeakers; Outer Frame Diameters and Mounting Dimensions. (Dimensional characteristics of single moving-coil (dynamic) loudspeakers) — Part 15: Preferred Matching Values for the Interconnection of Sound System Com- ponents. (Preferred electrical values for the correct interconnection of sound system components)