Quick presets
Start with Slowed + Reverb, Super Slowed, Nightcore or Sped Up. Each preset changes several controls together; use it as a starting point, then adjust the sound to your file.
BROWSER AUDIO EFFECTS
Slowed + Reverb Generator
Slow down a track, add reverb or speed it up. Upload audio, adjust the controls and export your version directly in the browser.
TIME WARP STUDIO / 01
Slowed and Reverb Studio
Upload a song, choose a preset or tune every control, then preview and export the transformed version directly in your browser.
Drop your audio file here or click to browse
MP3, WAV, M4A, OGG, FLAC — up to 50 MB
All processing runs in your browser. No upload, no account, no credits.
FROM IDEA TO MUSIC
Give a familiar track a different atmosphere
Explore how your audio feels at a new pace. Use a preset as a starting point, then adjust the speed, pitch and reverb controls while previewing the sound.
The effect is processed in your browser. When the version sounds right, export it as a WAV file.
MADE FOR YOUR WORKFLOW
A small set of controls, a different feeling
Preview each adjustment with your own audio.
Speed control
The speed range runs from 0.5× to 1.5×. Start with a small change around 1× when you want to preserve the song’s feel, and compare stronger changes by ear.
Pitch and space
Pitch adds a shift from −12 to +12 semitones, while reverb adds space from 0–100%. Speed and pitch both affect playback; start with modest settings to hear their combined effect.
Browser export
Process and export the audio on your device as a WAV file. Listen to the chosen settings before downloading, especially the clarity of vocals, bass and reverb tails.
How to make a slowed reverb edit
Upload, shape the sound and export.
Add an audio file
Choose a supported audio file up to 50 MB and let the browser decode it. Start with a shorter file when exploring settings so it is easier to compare the whole edit.
Adjust and preview
Choose a preset, play a preview and adjust one control at a time. Stop and start Preview again after changes to hear the current settings, then compare the balance of pace and space.
Export your version
Download the processed WAV when the sound fits your idea. Keep the original file too, and listen to the exported beginning and ending before placing the edit in another project.
For listening, edits and sound experiments
Try a different pace and space for your audio.
Music listeners
Explore how a familiar arrangement feels at a different pace. Compare a subtle speed change with a preset and decide how much space supports the original mood.
Video editors
Test a slower or faster feel against a sequence of images. The processed audio can change length, so align and trim it in your video editor after export.
Creators
Create alternate atmospheres from audio you are working with. Keep a note of the speed, pitch and reverb values when comparing versions for the same scene.
Producers
Use the controls to explore a texture or transition idea. Export the version you like, then continue detailed editing and arrangement in your usual audio tools.
YOUR NEXT CREATIVE STEP
Your audio, with a new pace and space
The result is a processed version of the file you upload. Speed, pitch and reverb settings shape its character, and the export creates a WAV file.
Processing takes place locally in the browser, and this tool does not require sign-in.
What you can work with
- Input
- MP3, WAV, M4A, OGG or FLAC
- File size
- Up to 50 MB
- Effects
- Speed, pitch and reverb
- Export
- Processed WAV audio
Choose an atmosphere to explore
Use a preset or build your own combination.
Slowed + reverb
The preset starts at 0.85× speed, −2 semitones and 50% reverb. Try it for a spacious reinterpretation, then reduce the reverb if words or drum hits become less distinct.
Super slowed
This preset uses 0.65× speed, −4 semitones and 70% reverb. It is a stronger starting effect; compare the bass and melodic detail before deciding whether to keep all three settings.
Nightcore
Start at 1.25× speed, +3 semitones and 15% reverb. Listen to vocal clarity and the resulting pace, then reduce the pitch shift if you want a less pronounced change.
Sped up
The preset sets speed to 1.3× with zero additional pitch shift and no reverb. Speed itself still changes pitch, so judge the new vocal and instrumental character by ear.
Subtle space
Set speed to 1× and pitch to zero, then add a small amount of reverb. Compare the dry and processed sound to find how much space the recording can support.
Custom edit
Start near the original settings and change one value at a time. Restart the preview after adjustments and keep notes so you can reproduce the combination you prefer.
Frequently asked questions
The details to know before you start.
The effect processing runs locally in your browser. You choose a file on your device, preview it and export a processed copy. This audio-effect workflow does not upload the selected file for generation.
The tool accepts MP3, WAV, M4A, OGG and FLAC up to 50 MB, subject to browser decoding support. If a file cannot be decoded, try a supported export from your audio editor, such as WAV or MP3.
The processed version downloads as a WAV file. Keep the original separately if you want to make another edit later. Listen to the exported audio before using it in a video or an arrangement.
Yes. The speed control extends to 1.5×, and Nightcore and Sped Up offer faster starting points. Listen to both the pace and pitch of the result because playback-speed changes affect the sound together.
No. This local audio-effect tool can preview and export without signing in or spending generation credits. The processing uses your browser and device, so a shorter file can be more convenient for trying settings.
No. This tool changes playback rate and applies an additional pitch shift. Both influence the sound and playback pace; it is not a tempo-preserving pitch editor. Start near the original settings and compare the result by ear.
The current preview uses the settings from when it started. Stop it, adjust the controls and start Preview again to hear the new combination. Download uses the settings selected when you begin the export.
Lower reverb first and replay a passage with clear vocals or drum hits. Then adjust speed and pitch in smaller steps. If several controls change at once, it becomes harder to identify which one obscures the detail.