Slowed + Reverb Maker

The two effects behind the sound

Two processes make up almost the whole aesthetic. First is the tempo drop, typically to somewhere between 75% and 90% of the original speed. That doesn't just lengthen the track — it stretches every transient, so a sharp snare crack turns into a softer thump, and it opens up the gaps between events, which is what gives the arrangement its spacious feel rather than just a slower one.

Second is a long reverb, added specifically to fill those newly opened gaps. This one is a Schroeder network: four parallel comb filters feeding two series all-pass filters, with the right channel detuned slightly from the left so the tail spreads across the stereo field instead of collapsing to the centre. Decay time sets how long the tail rings out, damping tames the top end so it stays behind the music instead of on top of it, and pre-delay holds the tail back by a few milliseconds so the dry attack still reads clearly.

Order matters here. Stretching first and reverberating second lets the reverb respond to the already-slowed material, which is why the result sounds like a room the slowed track was actually recorded in. Doing it the other way around would smear the tail itself into something that sounds obviously processed.

A starting point worth trusting

A good starting point is 85% speed with a hall reverb around 30% wet — that combination is close to what most well-received slowed edits use and holds up on almost any source. From there, adjust speed first, then the wet mix.

Dense, busy productions call for less reverb than sparse ones, since there's already energy filling the space and a long tail on top just muddies things. Sparse ballads, solo piano, and anything with long sustained notes can take a much heavier tail. If a result sounds washed out, pull back the wet mix before shortening the decay — it's almost always too much reverb signal, not too long a tail.

• 85% speed, hall reverb, 30% mix — the reliable starting point
• 75% speed with a cathedral tail for the heaviest version of the style
• Keep pitch at 0 for a modern slowdown, -1 to -2 semitones for the tape sound
• Busy mixes need less wet signal than sparse ones

After you export

Reverb-heavy exports usually come out quieter than the source, since the peak protection has to make headroom for the tail. Passing the result through the Volume Normalizer at -14 LUFS restores a level that sits well alongside anything else on a playlist, without clipping.

If you want the vocal pushed forward — a common request for this style — separate it first with the Vocal Remover, apply the slowdown and reverb only to the instrumental, then layer the dry vocal back on top. It's an extra step, but it's the difference between a wash and an actual mix.

You might also need

• Tempo & Pitch ChangerRetime a track or shift its key on their own, without the classic pitch-follows-speed effect.
• Vocal Remover & Karaoke MakerPull the lead vocal out of a stereo song, or isolate it into its own acapella.
• Audio ConverterSwitch a file between MP3 and WAV and adjust sample rate or channel layout.