The Upper Register of the Oboe

双簧管的高音区

One of the ways of achieving the upper register of the oboe is opening a hole in the side of the air column close to the mouthpiece. Opening a hole releases excess air pressure and destroys the fundamental vibrational mode. If properly positioned, the hole favors the second harmonic mode which has a pressure node (displacement antinode) in the region near the mouthpiece.

小号高音区的一种实现方式是在气柱靠近吹口的一侧开一个孔。开孔会释放多余的气压并破坏基本振动模式。如果位置恰当，这个孔会促进第二泛音模式，该模式在靠近吹口的区域有一个压力节点（位移抗节点）。

Lower register

低音区

Upper register

高音区

One of the mechanisms for register change is a key with a hole in it which is kept covered with a finger of the left hand when playing notes in the lower register. The upper register can be achieved by lifting the finger from this hole as demonstrated above.

注册变化的一种机制是一个带有孔的键，当演奏低音区音符时，该孔被左手指盖盖住。如上所述，通过将手指从该孔中抬起即可演奏高音区。

Thanks to Liz McKeown for helping to demonstrate the instrument and to Tim Merritt of GSU's Instructional Resource Center for assistance with the video.

感谢 Liz McKeown 帮助演示仪器，以及 GSU 的 Instructional Resource Center 的 Tim Merritt 在视频方面的协助。

Index

Woodwind instruments

Musical instruments

索引长笛类乐器音乐乐器

HyperPhysics***** Sound

HyperPhysics ***** 声音

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