当声的频率等于或接近于响应系统本征频率时对声压强的响应的增强。当一系统处于共鸣中时，它的阻抗的虚部等于零。在亥姆霍兹共鸣器、风琴和其他管弦乐器中是显著的。
可能会感觉到胸部的敲击声是共鸣，触觉的颤抖明显降低。
Percussion of the chest may be perceived as hyper resonant, and tactile fremitus can be noticeably decreased.
发声的基础知识声器官是由呼吸器官、喉头与声带共鸣器官和咬文吐字器官组成。
The basics of sound audible from respiratory organs, throat and vocal resonance organ and biting cultural articulation organs.
在此基础上，巧妙调节口腔共鸣，强化和集中泛音，唱出透明清亮、带有金属声的高音声部，获得无比美妙的声音效果。
Then, he adjusts the resonance of the air in the mouth to intensify and centralize the overtone. The effect is the uttering of a high, bright and clear sound with a hint of metal.
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