1979. Phil Collins plays drums without cymbals at Townhouse Studios in London, recording the track "Intruder" for Peter Gabriel's third solo album. Engineer Hugh Padgham accidentally opens the talkback microphone above the kit - a mic intended for communication, routed through heavy compression and a gate. The hit sounds enormous: reverberation fills the room, and the gate chops the tail after half a second. Thus was born gated reverb - the effect that defined the sound of the 80s. Gated reverb, in plain words, is reverberation whose tail is cut off by a noise gate.
How gated reverb works
The processing chain consists of five steps. First: a close mic and an ambience mic are placed over the drum kit. Second: the ambience mic is passed through a high-ratio compressor - quiet reverb details become audible. Third: the ambience signal goes into a noise gate. Fourth: the close mic serves as the gate's key input - the gate opens on a hit and closes after 0.4-0.6 seconds. Fifth: close and ambience are mixed. The result: the drum sounds "live" and huge, but the reverb does not drag - the mix stays transparent.
On most iconic 80s recordings, this "natural" method was not used. Instead, the AMS RMX16 - a digital reverb unit with the NonLin2 algorithm - did the job. NonLin2 emulated the gated effect inside the processor: no "live" room needed, no separate gate required. The sound of "In the Air Tonight," "Against All Odds," Genesis's "Mama" - all AMS RMX16 with NonLin2. More on 80s reverb in our deep dive into Lexicon and why the 80s sound the way they do.
History: who was first
Steve Lillywhite, the producer, claims he experimented with the "ambience thing" as early as 1978 - on Siouxsie and the Banshees' album The Scream, where drummer Kenny Morris played without cymbals. Lillywhite: "When you listen, you can hear elements of this gated room sound, big compressed room sound that I did on the Banshees." Hugh Padgham was the engineer on the Peter Gabriel sessions (1980) - that is where the effect "really showed its head," in Lillywhite's words.
Yellow Magic Orchestra (YMO) from Japan applied gated reverb to a snare even earlier - on "Computer Game / Firecracker" (1978) and "Behind the Mask" (1979). Ryuichi Sakamoto used a digital reverb unit to create the effect on the snare, with Yukihiro Takahashi on drums. The Japanese arrived at the same sound in parallel with Lillywhite.
Five imitation mistakes
- Tail too long - the gate should close after 0.4-0.6 seconds. Any longer is not gated reverb, just regular reverb.
- No ambience compression - without compression, quiet reverb details are lost and the sound goes flat.
- Gate on close mic instead of ambience - the gate should cut the ambience, not the hit itself. Cutting the hit kills the transient.
- Too much wet signal - gated reverb is a parallel effect. Dry and wet are mixed; wet should not dominate.
- Applied to cymbals - gated reverb on hi-hats creates a "chewing" sound. The effect works on kick and snare, not cymbals.
Detail: Padgham opened the talkback mic above Collins's drums by accident - the mic was heavily compressed and passed through a gate. Hearing the result, he kept it in the "Intruder" mix. That accident became the recipe for a decade's sound.
Where to hear it
Phil Collins "In the Air Tonight" (1981) - the quintessence of the effect: snare on 2 and 4, the gate chops the reverb after half a second, every hit sounds like a cannon. More in our deep dive into "In the Air Tonight". Other examples: Collins's "Against All Odds," Genesis's "Mama" and "No Son of Mine," Collins's "Sussudio" (1985), Bruce Springsteen's "Born in the U.S.A.," Billy Idol's "In the Dark."
Decline and return
In the 1990s bands returned to a natural drum sound. Nirvana, Pearl Jam, Oasis - live drums, reverb without a gate. But in 2013 Haim used gated reverb on their debut album Days Are Gone. By 2018 Lorde and Beyoncé had incorporated the effect into rhythm tracks. Gated reverb is not an "80s relic" but a tool that comes and goes. When you need the sound of a "huge snare in a small room" - there is no substitute.