How to make slowed and reverb songs
- Upload an MP3, WAV, M4A, FLAC or OGG file. It stays on your device.
- Start from the Slowed + reverb preset: 85% speed, 35% reverb and a three-second room.
- Press play and move the sliders while the song runs. The preview changes as you drag, so you can hear exactly where it sounds best.
- Press Download WAV. The whole song is rendered at the settings you chose, including the reverb tail at the end.
What the three sliders do
- Speed sets the tempo and the pitch together. 100% is the original; 85% is almost three semitones lower and the song gets about eighteen percent longer. A three-minute song becomes roughly three and a half minutes.
- Reverb is how much echo you hear. Around 30-40% gives the familiar washed-out sound while the vocal stays clear. Past 60% the song starts to sound far away, which can work for an outro or an ambient edit.
- Room size is how long the echo rings out. Short rooms of one to two seconds sound like a studio; three to five seconds feel like a hall; seven or eight seconds blur the beat into a pad.
Why slowed reverb sounds the way it does
Slowing a song lowers every frequency at once. Vocals get deeper, cymbals lose their sharp edge and the bass grows heavier, which reads as warm, calm or melancholic. The reverb then fills the extra space between the notes, smoothing out the gaps the slower tempo creates. The two together are why slowed edits became a genre of their own on YouTube, TikTok and late-night playlists: a familiar song, heard as if from another room at two in the morning.
That also explains what does not work. Songs that are already slow and spacious can drag at 80%, and dense mixes with a lot of reverb on the original vocal can turn to mush if you add much more. In those cases try 90% speed and less reverb, or use the Reverb only preset.
Settings that work for different songs
- Pop and R&B: 85% speed, 30-35% reverb, three-second room. The classic slowed edit.
- Hip-hop and trap: 80-85% speed, 25% reverb, two-second room. The drums stay punchy and the 808s get heavier.
- Ballads and acoustic songs: 90% speed, 40% reverb, four-second room. Slow less, echo more.
- Dance and electronic: 75-80% speed for a dreamy version, or 120-130% with little reverb for a sped up one.
Find the new tempo of your slowed version
The new BPM is simply the original BPM times the speed. A 120 BPM song at 85% runs at 102 BPM. If you are going to cut a video or a DJ set to the slowed version, you need that number. Find the original tempo with our BPM & Key Finder, or tap it out on the Tap Tempo tool, then multiply.
Make a slowed and reverb video
Audio platforms need a picture. To upload the slowed version to YouTube, turn the WAV into an MP4 with your cover art or a moving visualizer using our free Audio to Video converter. For Spotify, add a looping three-to-eight-second Canvas with the Spotify Canvas Maker.
If you want a real music video for your own track, AIMusicVideoGen takes the song and one photo of the singer and makes a lip-synced video cut to the beat. Slowed versions work well here: the longer bars give each scene more time on screen.