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N an electronic instrument that produces a record (sound spectrogram) of the way in which the frequencies and intensities of the components of a sound, such as a spoken word, vary with time 声谱仪
When each kind of vocal organ adjustment, can cause the sound production similarly the spectrograph has the corresponding change.
而各种发声器官的调整，同样会使发声时的频谱图产生相应的变化。
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