Pick-up for e.g. German flute, has microphone embedded in movable cork or plastic piece for closing sound pipe, where microphone lies inside pipe and serves to close vibrating air column on sides of blowing hole

摘要

The pick-up has a microphone embedded in a movable cork or plastic piece for closing a sound pipe. The microphone lies inside the sound pipe and serves to close vibrating air column on the sides of a blowing hole of the sound pipe.