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结合标准样品的基本概念,对节目源标准样品进行理论分析,并对几个主要的特性进行了介绍。电声产品和电声产品的声音质量(音质)是个心理量,它需要通过音质主观评价来获得结果,并用评价尺度来表示它的大小。同任何一个检测结果一样,音质主观评价结果同样必须具有溯源性和离散性这两个属性。标准样品的主要特性包括:溯源性、均匀性及稳定性、测量不确定度等。有证节目源国家标准样品的成功研制,对促进音质主观评价事业的技术发展和提高国内音响产品的音质水平具有重大意义。
Combined with the basic concepts of standard samples, the source samples of the program were theoretically analyzed and several main features were introduced. The sound quality (sound quality) of an electroacoustic product and an electroacoustic product is a psychological quantity that needs to be obtained through subjective evaluation of sound quality and its size is expressed by an evaluation scale. As with any of the test results, the same subjective evaluation of sound quality must have both traceability and discreteness. The main characteristics of the standard samples include: traceability, uniformity and stability, measurement uncertainty and so on. The successful development of national standard samples of certified program sources is of great significance to promoting the technical development of subjective evaluation of sound quality and improving the sound quality level of domestic audio products.