How to make a slowed + reverb song

The slowed + reverb sound comes from two simple changes: playing a song more slowly, which also lowers its pitch, and placing it in a big, dark room. Getting it to sound dreamy rather than muddy is about the amounts. Here are the settings that work, and how to make your own version in the browser.

Open the slowed + reverb maker →

The settings

Speed 0.80–0.88×: slows the song and drops the pitch by roughly two to four semitones. Below 0.75× vocals start to sound unnatural.
Reverb 35–50%: enough to wash the song in space without burying the vocal. A room size of 3–4 seconds gives the long tails the style is known for.
Reverb tone: darker is softer. Bright reverb on a slowed track quickly sounds harsh.
A little bass: slowing a song thins it out slightly; +2 to +4 dB of bass brings back the weight.

Variations

Underwater: add Muffle to roll off the highs, plus a touch more bass.
Lofi vinyl: a gentler 0.9×, some muffle and vinyl crackle.
Slowed + 8D: add slow rotation (8–12 seconds per turn) for headphone listening.
Same key: tick “Keep the original pitch” to slow the tempo without lowering the key.

Step by step

Open the Glowtrack Studio slowed + reverb maker and drop in a song.
Press Play — the classic Slowed + reverb preset (0.85×, 42% reverb) is already on.
Adjust speed, reverb, room size and bass while it plays until it sounds right; try the Underwater or Lofi vinyl presets.
Choose MP3, M4A or WAV and press Make the file, then download it.
Optionally press “Make a visualizer video with it” to turn it into a lofi video.

Open the slowed + reverb maker →

Questions

Can I post slowed + reverb versions of other artists’ songs?

Only with permission. A slowed version is still the original recording, and YouTube, TikTok and Spotify will usually match it with their copyright systems. It’s ideal for your own music, or for personal listening.

What is daycore?

A slowed, lower-pitched version of a song with lighter reverb — the opposite of nightcore.

Does it change the song’s key?

Yes, unless you tick “Keep the original pitch”. At 0.85× the pitch drops by about 2.8 semitones.