How do I make the sound twice as loud?

Set the volume to 200%, or click “Very loud”. If “Expected peak” goes above 1.00, though, the sound distorts.

The sound distorts after I turn it up.

The volume you chose makes “Expected peak” go above 1.00. Click “Fit automatically”, or lower the volume.

Change volume · Pegmo

Change volume

Drop a file here

Make it louder or quieter. Your file is processed on your device.

MP3·WAV·M4A·OGG·FLAC

How to use Change volume

What it does

Make the sound of an audio file louder or quieter. Set the volume as a percentage from 0% to 300%, and the same ratio is applied to the whole file. The file is processed on your device and is not uploaded.

Step by step

Drop an audio file onto the page, or click to choose one.
On the “Volume” tab, type a number into the “Volume” field or move the “Adjust” slider. You can also click “Quiet” (50%), “Original” (100%), “Loud” (150%) or “Very loud” (200%) under “Presets”. The starting value is 150%.
Play the file to hear the new volume. If you change the value while it plays, the change is heard right away.
If “Expected peak” goes above 1.00, those parts distort. Click “Fit automatically” to set the volume to the highest level that stays clean.
On the “Format” tab, choose WAV or MP3. The default is WAV.
Click “Change volume”. When it finishes, use “Save” to download the file.

Good to know

100% is the original volume. At 100%, “Change volume” can't be clicked. At 0%, there is no sound.
Parts above 1.0 are cut off and are saved distorted. Check “Expected peak” before you save.
Whatever the original format, the result is WAV or MP3. MP3 is saved at 192 kbps.
The first time you save as MP3, the converter (about 32 MB) is downloaded.
This tool opens audio files only. If the sound can't be read, a message appears; choose an MP3, WAV or M4A file instead.
The file name is the original name followed by “-volume” and the percentage, for example song-volume150.wav.

Frequently asked questions

How do I make the sound twice as loud?: Set the volume to 200%, or click “Very loud”. If “Expected peak” goes above 1.00, though, the sound distorts.
The sound distorts after I turn it up.: The volume you chose makes “Expected peak” go above 1.00. Click “Fit automatically”, or lower the volume.