Slow Down Audio
HomeSlow a voice memo, lecture, or clip without uploading. Drop pitch like a tape by default, or keep pitch so speech stays natural. WAV out by default. Runs in your browser. Your file never leaves this device.
- Choose a WAV, M4A, or MP3 file
- Pick a speed (0.5×–1×) and Drop pitch or Keep pitch
- Optionally trim the range on the waveform
- Preview, then download as WAV (or MP3 / source format)
FAQ
By default, yes — Drop pitch makes pitch fall with speed, like slowing a tape. Keep pitch holds the original note while stretching time.
WAV is PCM (lossless after decode). Slowing then re-encoding as MP3 would add another generation of loss. Pick MP3 if you need a smaller file.
Possibly. Time-stretch is tuned for speech. Music at extreme slowdowns can sound grainy — try 0.75×–0.8× or stick with Drop pitch.
No. Decode, stretch, preview, and encode all run in your browser.