606 Recording Studio Design Curtains Figure 24.1 Use of tracking loudspeakers. In this situation, a directional microphone is used to record the vocalist, with a loudspeaker providing the foldback. A typical arrangement would be for the loudspeaker to be placed directly behind the microphone, and pointing towards an absorbent surface in order to control the amount of reflexions of the foldback signal returning to the front of the microphone