AUD · Audio tools

Slowed + Reverb Maker

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Settings are written to the URL as you change them. Nothing differs from the defaults yet.

Set a speed, set a room, export. The speed is a plain resample, the way a record plays at the wrong RPM, so the tempo and the key move together.

Speed

Preset Speed Pitch 3:00 becomes
Slowed 0.8x -3.86 st 3:45
Extra slow 0.7x -6.17 st 4:17
Nightcore 1.25x +3.86 st 2:24

The slider runs from 0.5x to 1.5x. Below 0.7x vocals take on a heavy, syrupy character, and at 0.5x the song is a full octave down.

The room comes after the slowdown

The order matters more than it looks. In a slowed and reverb edit the reverb is a space the slowed song plays in. If the reverb were added first and the whole thing slowed afterwards, the reverb tail would be stretched and pitched down with the music, so a 2-second decay at 0.7x would become nearly 3 seconds and noticeably darker.

Here the export resamples first and runs the reverb on the slowed signal, which is exactly what the preview plays: the player slows the source, and the reverb runs on what comes out of it.

Reverb controls

The defaults are a large room (size 80%, damping 45%, mix 35%), wetter than the Reverb tool’s own defaults because the genre leans on the wash.

  • Room size sets how long the tail lasts.
  • Damping takes the high frequencies out of the tail as it decays. Higher values sound like a carpeted hall, lower values like a tiled one.
  • Pre-delay holds the reverb back a few milliseconds so the vocal stays in front of it.
  • Mix sets how much of the room you hear against the dry song. Above 50% the song starts to sit behind the room rather than in it.

Slowing a song down does not change who owns it. A slowed and reverb edit of a commercial track is still that track for licensing and upload filters.

Frequently Asked Questions

It plays a song back slower than recorded, so the tempo and the pitch both drop, and adds a large reverb to the result. Speeds above 1x make a nightcore version, faster and higher. The export is one file in the source format.

Most edits sit between 0.75x and 0.85x. The Slowed preset is 0.8x, about 3.9 semitones down. Extra slow is 0.7x, a little over 6 semitones down.

Because it is added after the slowdown, in the preview and in the export alike. Reverberating first and slowing afterwards would stretch the room too, making it longer and darker than the controls say.

Not here, because the pitch drop is the sound. Use the Audio Speed Changer with Keep the original pitch on, then add reverb with the Reverb tool.

At 0.8x every second of the song takes 1.25 seconds to play, so a 3-minute track exports at 3:45. The reverb tail adds a little more at the end.

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