In the Air Tonight Tom Drum Flam Fill

In this case, the Solid State Logic 4000 mixing board had a "reverse talk-back" circuit (labelled on the board as "Listen Mic"). Normal "talkback" is a button that the mixing engineer has to press in order to talk to the recording musicians (the recording and the mixing parts of a studio are, otherwise, completely sonically isolated). Reverse talkback is a circuit (also button-activated) for the engineer to listen to the musicians in the studio. In order to compensate for sound level differences - people can be close to the reverse talkback microphone or far off - this circuit has a compressor on it, which minimises the differences between loud and soft sounds. While recording "Intruder" for his former bandmate Peter Gabriel's third solo album, at some point Collins started playing the drums while the reverse talkback was activated. Engineer Hugh Padgham was amazed at the sound achieved. Overnight, they rewired the board so that the reverse talkback could be recorded in a more formal manner. Later models of the SSL 4000 allowed the listen mic to be recorded with the touch of a button.