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IEC268-1C“模拟节目信号”是一种通过对语言、音乐节目长期统计分析而推荐制定的标准测量信号。它的功率谱较真实地反映了实际的语言和音乐节目的功率谱。此信号在电声测量中具有广泛的用途,如用它来考核扬声器等电声器件和功率放大器等设备其结果比较符合实用情况。在其它领域也得到越来越广泛的应用。
IEC268-1C “Analog Program Signal” is a standard measurement signal recommended by long-term statistical analysis of languages and music programs. Its power spectrum more realistically reflects the actual language and music program power spectrum. The signal has a wide range of uses in electroacoustic measurements, such as using it to evaluate devices such as speakers and other electro-acoustic devices and power amplifiers. The result is more practical. In other areas have also been more widely used.