fipple
noun [ C ] music specialized uk/ˈfɪp.əl/ us/ˈfɪp.əl/
（长笛、哨子等的）音栓，哨子头，哨塞
the part of some musical instruments, such as a recorder or pipe, that the player puts into his or her mouth and blows
The recorder and tin whistle are played by blowing into a fipple. 直笛和六孔小笛是通过向音栓吹入空气演奏的。
- More examples
- A flute is an instrument played by blowing across a mouth-hole or (as in the recorder) against a sharp edge, or fipple.
- The fipple has a duct along which the breath travels.
- It is technically easier to play an instrument with a fipple than a transverse flute.
- An iron age fipple flute made from sheep bone has been found.