In a vocal remover
Reverb tails survive centre-channel cancellation, which is why you still hear a ghost of the singer.
Read more about Vocal removerWhat Is Reverb? Meaning and How It Works
The sound of a space — thousands of reflections arriving after the direct sound. Reverb places a recording somewhere, from a small room to a cathedral.
In short
Reverb is the sound of a space: when a sound is made in a room, it reaches your ears directly and then again thousands of times as it reflects off surfaces. Reverb recreates that, and it is what tells a listener whether a recording happened in a bedroom or a cathedral.
- Three parts
- Direct sound · early reflections · tail
- RT60
- Time to decay by 60 dB
- Small room
- ≈ 0.3 s
- Cathedral
- 4–8 s
The textbook reverb definition — the persistence of sound after the source has stopped, produced by reflections off surfaces — is accurate but undersells how constant it is. Every sound you have heard outside of an anechoic chamber arrived with reverb attached, which is why a completely dry recording sounds unnatural and slightly unsettling. The brain uses those reflections to judge the size of a space and the distance to a source, so reverb is not decoration — it is spatial information.
It has three parts worth knowing. The direct sound arrives first. Early reflections — the first bounces off nearby surfaces — arrive within a few milliseconds and tell you how big the room is. The reverb tail is the dense wash that follows as reflections multiply, and its length is described by RT60: the time it takes to fall by 60 decibels. A small room might be 0.3 seconds; a cathedral can exceed 6.
The mixing decisions follow from that. More reverb pushes a sound further away, so it is the main tool for creating depth — vocals stay relatively dry to feel close, while a pad can sit far back. Pre-delay, the gap before the reverb starts, lets you keep a vocal intelligible while still placing it in a big space. And reverb accumulates: individually reasonable amounts on twelve tracks produce a mix that sounds like it was recorded in a swimming pool.
In generated music, reverb is usually baked into the stereo file and cannot be removed, so it is worth specifying up front. "Close, dry vocal" and "distant, cathedral reverb" produce fundamentally different records, and the difference is not something you can add later.
Where reverb decides something
Three places reverb decides something.
In reverse
Reversing a reverb tail is the classic swell before a vocal entry.
Read more about Audio reverser
In a brief
Ambient depends on long reverb; a podcast bed needs almost none, or it smears speech.
Read more about AmbientExplore
More music and AI terms explained
The terms that carry enough confusion to need a full page.
Reverb — questions people ask
What is reverb?
The sound of a space — thousands of reflections arriving after a sound, blurring into a tail. It is what tells your ear whether something was recorded in a small room or a cathedral.
What is the difference between reverb and delay?
Delay is a small number of distinct repeats you can count. Reverb is so many reflections that they merge into a wash you cannot separate.
What does reverb do to a mix?
It places sounds at a distance. More reverb pushes an element further back; a dry signal sits at the front, which is why lead vocals usually carry less of it than the parts behind them.
Why can I still hear the singer after using a vocal remover?
Because reverb tails are spread across the stereo image rather than centred, so centre-channel cancellation leaves them behind. What you hear is the effect, not the dry voice.
What is reverse reverb?
Reversing audio, adding reverb, then reversing the result — so the tail runs backwards into the note. It is the classic swelling pre-echo before a vocal entry.
Should podcast music have reverb?
Very little. Reverb smears speech and makes a bed harder to sit under narration, which is why dry, close material works better under voice.
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