Audio editing · 6 min read
Slow 120 BPM to 90 BPM without changing the key
Calculate playback speed and semitone changes, prepare a practice excerpt, and verify the processed WAV before using it.
Read the storyTUNENOODLE / Free · runs in your browser
Slowed + Reverb
Slow down a local audio file, add reverb, preview it, and export a 16-bit WAV in your browser without uploading the source file.
In your browser · no upload
Change speed and add space without uploading
The tool decodes your file locally, renders speed and reverb together, and prepares a 16-bit WAV download.
Parameter / option
| Parameter / option | What it changes |
|---|---|
| Choose a file | A local audio file of up to 20 MB and five minutes. |
| Speed | Slows the track down as far as you want; the pitch follows the speed in this tool. |
| Reverb | How much space is added, from a dry, close sound to a fully washed-out one. |
| Process and preview | Renders the result in the browser so it can be judged before exporting. |
| Export | Saves a 16-bit WAV from your device. The source file is never uploaded. |
How to use it
- 1
Choose a supported local audio file under 20 MB and five minutes.
- 2
Adjust speed and reverb, then process a preview.
- 3
Listen to the result and export it as WAV.
Good questions
No. File decoding, effects, preview, and export happen inside your browser.
Your next step
Related guides
All guidesTUNENOODLE
Slowed + Reverb
In your browser · no upload