Change the sample rate
Resample the audio to 22.05, 32, 44.1 or 48 kHz keeping its format. Useful for specific technical requirements.
Your files never leave your device
How to change the sample rate
- 1
Upload the audio
We show its current rate when probing it.
- 2
Pick the new rate
22.05, 32, 44.1 or 48 kHz.
- 3
Download the result
Same format as the original.
Why use this tool
Technical requirements
44.1 kHz for CD and music; 48 kHz for video; 22.05 for lightweight speech.
Clean resampling
ffmpeg’s resampler avoids the aliasing of sloppy conversions.
Private
Your audio never leaves your device: ffmpeg runs inside your browser.
Real engine
ffmpeg, the industry standard, compiled to WebAssembly and self-hosted.
Frequently asked questions
Does raising the rate improve the sound?
No: going from 44.1 to 48 kHz adds no information. It only makes sense to satisfy a requirement (e.g. video tracks).
Which one for speech?
22.05 or 32 kHz is plenty for speech and cuts WAV size; for music stay at 44.1 kHz or above.
Does it affect duration or pitch?
No: resampling preserves pitch and duration; it only changes how many samples per second the file stores.