Maztr's free online Audio Volume Editor is a quick and easy tool you can use right in your browser, without downloading any software, to edit the volume of your audio files. No account or login is required to use it.

The Audio Volume Editor is designed for users who want an volume editing tool they can use quickly, on the fly. It can increase or decrease the volume of your audio files by any amount you choose using decibels or percentage.

We have many more free tools for your audio files. Click here to check them out.

How do I use the Audio Volume Editor?

1. In the "Upload Audio File" section above, drag and drop or click to select the file from your local device.
2. If you want to change your selected audio file, hover or click the file then click "Remove".
3. Choose your volume settings. You can increase or decrease the volume by a percentage or decibels, and change the file output format.
4. Click the "Upload" button to submit your file for processing.
5. Finally, click the "Download" button to download your processed output file.

Why do I need a volume editor?

Your ears will often tell you if an audio file is not loud enough. If you crank up the volume and it's still too quiet, you may need to amplify the signals in your audio file. On the other hand, if a track is too loud you risk clipping, which sounds unpleasant. Also, if you have several tracks in an album or playlist, it can become annoying if the volume levels fluctuate up an down. Using our Audio Volume Editor, you can adjust each track so they play at similar levels.

How does the Audio Volume Editor work?

It uses a decibel or percentage change to edit the volume of your audio files. If you want to double the volume, select "% Increase" and enter 100 for a 100% increase. Conversely, you can halve the volume by selecting "% Decrease" and enter 50 for a 50% decrease. You can also increase or decrease the volume by a set number of decibels you choose.

What are decibels?

Decibels (dB) measure amplitude, which is the intensity of sound. The louder the sound, the more amplitude it has and therefore the more decibels it will register on the scale. Decibels are exponential, which means they rise at an ever increasing rate. For example, a 10dB increase results in a sound 10 times louder, whereas a 20dB increase results in a sound 100 times louder.

As a guide, normal speech is usually about 50dB, rock concerts about 110dB and a jet aircraft taking off is about 140dB. It's also important to note that regular, extended exposure to sounds above 85dB can result in hearing damage.

If I use the Audio Volume Editor, do I still need mastering?

The Audio Volume Editor won't replace our Mastering process. For best results, you need more than volume editing. We recommend you register for one of our accounts which have a wide range of advanced "state of the art" Mastering tools, such as Equalizers, Compressors and Limiters, to make your songs and podcasts sparkle.

Does the Audio Volume Editor have any usage limits?

Yes, the following limits apply based on your Maztr Subscription:

• No account is required to use this tool. Without an account, you have a 50MB file limit and can download the output as MP3 files. Free and Single Accounts have this same limit.
• MP3 Accounts have a 150MB file limit and can download the output as MP3 files.
• Pro or Plus Accounts have a 300MB file limit and can download the output as WAV or MP3 files.
• Upgrade here if you want to increase your limits.