Audio · Track 03 of 04
Make audio louder or quieter
Turn recordings up or down, or bring them to full volume without distortion. It happens on your device: nothing is uploaded.
How to change audio volume
- Choose the recordings, or drop them anywhere on this page.
- Pick Normalise, or how much louder or quieter to make them.
- Select Change volume, then download the results.
Your files stay on your device
This tool runs inside your browser: your recordings are processed on your device and never uploaded. Your browser enforces which servers the page may talk to, and none of them is sent your files. Here's how you can check. Once you've used it, it works offline too.
Questions
- What does Normalise do?
- It makes the recording as loud as it can be without distorting: the loudest moment is brought to just under the maximum (-1 dB), and everything else rises or falls by the same amount. Quiet recordings get louder; ones that already reach the top stay as they are.
- Why didn’t it get as loud as I asked?
- Turning a recording up past the maximum would cut off its loudest moments, which sounds harsh and crackly. So the change stops at the loudest it can go cleanly, and the result says so.
- How much is a decibel?
- About +6 dB doubles how strong the sound is, and +10 dB sounds roughly twice as loud to the ear. A change of 1 or 2 dB is subtle; -6 dB is clearly quieter.
- Can I even out several recordings?
- Yes. Add them all and choose Normalise: each one is brought to the same peak level, so none is much quieter than the rest.
- Does it change the format?
- By default, no: MP3 stays MP3, WAV stays WAV and M4A stays M4A where your browser can write it. Other formats, such as OGG, are saved as MP3, and FLAC as WAV. You can choose a format instead.
- Are my recordings uploaded?
- No. Their volume is changed by your browser, on your device, and they’re saved straight back to it.