趣味英语 我们怎样发出声音-教材资讯
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趣味英语 我们怎样发出声音

2017-04-11 17:36:07 本站 点击数:723

趣味英语 我们怎样发出声音

听觉和发声是我们交流的重要方式,语音也是语言的重要组成之一,那么我们是如何发出声音的呢?也许很小的孩子们都问过这样的问题,今天的趣味英语知识,就展示了我们发声的机理,以及发声器官的组成。

发声是一种很自然的现象,也是一门很实用的学问,因为我们在学习自然拼读时候,会接触到元音和辅音,二者发音的机理也有所不同,在学习唱歌时候,也会涉及发声的知识。可以通过这篇文章,来了解其中的奥秘。

Vocal Sound Production

Diaphragm action pushes air from the lungs through the vocal folds, producing a periodic train of air pulses. This pulse train is shaped by the resonances of the vocal tract. The basic resonances, called vocal formants, can be changed by the action of the articulators to produce distinguishable voice sounds, like the vowel sounds.

The Vocal Folds

Positioned at the base of the larynx in the vocal tract, these twin infoldings of mucous membrane act as the vibrator or "reed" during phonation. Open during breathing, the folds are closed by the pivoting of the arytenoid cartilages for speech or singing.

Positive air pressure from the lungs forces them open momentarily, but the high velocity air produces a lowered pressure by the Bernoulli effect which brings them back together. The folds themselves have a resonant frequency which determines voice pitch.

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原文连接:http://www.eshareedu.com/News/detail/id/522.html


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