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人的语言和乐音一样,都是一种由基音和泛音共同组成的复音。对于不同人的发声,所包含的语音频率范围也不尽相同。语音的频率范围常用频谱分析仪分析,由于该设备昂贵,一般单位不宜配备。我们试制的语音频宽演示装置,结构与操作简单,测试迅速,并能演示直观现象,可用于教学演示。现介绍如下: 一、最佳测量频率的设置 在物理学中通常把具有正常听觉能力者所能听到的从20Hz到20kHz声音频率,称之为声音频率范围。根据国际推荐标准ISOR.266(声学最佳测量频率)的规定,可以
Human language, like music, is a polyphony of both pitch and overtone. For different people’s voices, the range of voice frequency is also different. Frequency spectrum analysis commonly used frequency analysis, due to the equipment is expensive, the general unit should not be equipped. Our trial voice bandwidth demonstration device, the structure and operation is simple, rapid test, and can demonstrate the visual phenomenon, can be used for teaching demonstration. Are described below: First, the best measurement frequency settings In physics, usually with normal hearing ability can hear from 20Hz to 20kHz sound frequency, called the sound frequency range. According to the International Recommended Standard ISOR.266 (best acoustic measurement frequency), it is ok