Slowed and reverb generator for browser edits

Start with the Slowed + reverb preset, then adjust the speed and room while the audio plays.

1. Load your audio. Drop an audio file into the tool or tap "Try a demo track". Playback starts so you can hear the source before changing it.
2. Shape the effect. Choose Slowed + reverb. Set speed near 85%, reverb mix near 25%, and increase room size gradually. Use the Effect/Original switch to compare the vocal and bass against the source.
3. Choose your export. Keep the full song or drag across the waveform to select a clip. The selection loops while you tweak. Choose Download and render MP3 or WAV.

Listen through the loudest chorus before exporting. A roomy intro can hide problems that become obvious when the drums arrive.

Use 80-85% speed with pitch following and 25-40% reverb mix for the familiar low-voiced, spacious edit sound.

These are starting points, not genre rules. A song with reverb already printed into the mix usually needs less added ambience. Dense distorted guitars also fill a large room quickly.

Choose the mood from the vocal first. If the singer loses too much clarity at 80%, move toward 85-90% before adding more reverb. A slower setting is not automatically a better edit.

At 80-85% speed, pitch-following playback drops the song by roughly 3-4 semitones because timing and pitch change together.

That tape-style behavior is central to the sound. The singer moves into a lower register, cymbals darken, and drum hits feel heavier. Reverb alone cannot create that change. It adds space around the existing performance rather than lowering it.

The separate pitch slider changes pitch in semitones while keeping tempo. Use it for a deliberate correction, not as another speed control. To approach the original key after slowing, raise pitch by roughly the amount lost, then compare by ear.

For edits where tuning matters more than room ambience, see the pitch adjustment tool. Restoring pitch will sound different from a classic slowed edit.

Reduce reverb mix first when the edit sounds muddy, then make the room smaller if bass notes still overlap.

• Bass turns into a rumble: reduce any added bass boost toward 0 dB. Shorten the sense of space with a smaller room rather than pushing the vocal louder.
• Words disappear: lower reverb mix from 40% toward 25%. Compare a phrase with sharp consonants using Effect/Original.
• The groove drags: move speed toward 85-90%. Check whether kick and snare still feel connected.
• The chorus gets crowded: use less reverb than the intro suggests. Sustained keyboards and backing vocals already occupy space between drum hits.

Skip extra low-end processing until the room sounds right. The bass boost controls are useful for weight, but boosting a muddy mix makes the overlap more obvious.

Select a recognizable chorus phrase for a 15-30 second video clip, and leave room in your video edit for the reverb tail.

Drag across the waveform or use the 15 s or 30 s selection button. Let the clip loop while you adjust speed. Listen at the loop boundary: a cut through a vowel or cymbal can sound abrupt even when the middle feels right.

Reverb continues after the source stops, so the audible ending can extend beyond the last sung word. Its length depends on room size and mix; there is no single fixed addition. Check the downloaded ending rather than assuming it includes extra space. Fade the tail in your video editor if needed.

For other treatments, compare the options in the browser audio tools collection.

Adding slowdown and reverb does not change who owns a song, and platforms may mute or claim edits of someone else's recording.

An export button is not permission to post a popular song. Check the permissions for both the composition and recording before publishing.

For an original, make a track with SoundUser before processing its audio here. The music generator for short videos is a starting point for that separate workflow.

Tracks you create are yours to use in your own projects, including commercial ones, under the SoundUser Terms

Try this song-generation prompt: Dreamy electronic pop at 100 BPM in A minor, close dry lead vocal, sparse electric piano, rounded bass, restrained drums, clear chorus, minimal reverb. It is meant to produce a relatively dry source with space for the later effect. This is a generation brief, not an input for the audio effects tool. If the source already sounds washed out, request a dry vocal and shorter keyboard sustains before adding another layer of room ambience.