Abdominal tremolo has been called another name of air tremolo for it produce sound wave by alternation rule of strong air and weak air, the vibration of abdominal muscle and diaphragm.

• 腹颤音有的也称气颤音，因为它是靠气息的有规律的强弱交替而形成的水纹般的音波，是依靠腹肌和横隔膜有弹性的颤动而获得的。