How to Make a Slowed + Reverb Song

A slowed + reverb edit is two effects stacked together. First the track is slowed down — and crucially, slowing the playback also lowers the pitch, the same way a vinyl record played at a slower speed sounds deeper. There's no pitch correction involved; that lower, hazy pitch is the entire point of the sound. Second, reverb is added on top, so the music rings out as if it's playing in a large empty room.

The result feels dreamy, nostalgic, and spacious. The opposite edit — speeding the track up so the pitch rises and everything sounds brighter and faster — is called nightcore. Both come from the same single control: playback speed. Below 100% gives you slowed; above 100% gives you nightcore.

For a classic slowed + reverb feel, a speed around 80–90% works for most songs. Go too slow (below ~75%) and vocals start to sound sludgy and unclear; stay near 85% and you keep the words intelligible while still getting that dragged-out mood. For nightcore, 125–135% is the usual range.

Reverb has two knobs. The amount (wet mix) sets how much of the echoing, roomy signal you hear against the original — 30–45% is a good starting point, and pushing it much higher can wash out the vocals. Room size sets how long the reverb tail rings out: a short 1–1.5 second tail feels tight and intimate, while 3+ seconds gives a big, cathedral-like space. Preview after each change, since the right balance depends on how busy the original mix is.

The tool exports an uncompressed 16-bit WAV. That's the highest-quality option and plays everywhere, but the files are large — roughly 10 MB per minute in stereo. If you need a smaller file for uploading or sharing, run the WAV through an audio converter to turn it into an MP3 or M4A.

One important note: only edit music you have the rights to use. A slowed + reverb version is still a derivative of the original recording, so posting it publicly can run into copyright rules on platforms like YouTube and TikTok even when the edit is transformative. For personal listening you're fine; for anything public, make sure you're cleared to use the track.