Spectrograph

频谱仪

An instrument used in acoustic phonetics which provides a visual representation of the acoustic features that constitute the sounds in an utterance. The original sound spectrograph produced a three-dimensional visual record, or spectrogram, of an utterance, in which time is displayed horizontally, frequency vertically, and intensity by the relative blackness of the marks, on a sheet of sensitized paper. Today, spectrographic information can be generated electronically and displayed on a screen.

声学语音学使用的一种仪器，能为一个话段语音的声学特征提供视觉表示。最早的“语声频谱仪”在感光纸上显示一个话段的三维视觉记录，即“频谱仪图”，其中水平维表示时间，垂直维表示频率，深色的相对集中表示音强。现在，频谱信息可用电子仪器产生并在屏幕上显示。