This article describes how to use MP3Gain, a free audio normalising tool, to make all of your MP3 files play at the same loudness without sacrificing quality. The instructions here are for Windows PCs, however Mac users can use MP3Gain Express for Mac, which is a comparable programme.
What You Should Know
- Install MP3Gain and go to Options > Filename Display > Show File Only.
- Next, click Add File(s) to import your MP3 files into MP3Gain.
- Track Analysis > Track Gain is used to equalise unconnected tracks, while Album Analysis > Album Gain is used to normalise an album.
Download and Configure MP3Gain
The majority of MP3Gain’s default settings are ideal for the ordinary user; the only recommended adjustment is how the files are displayed on the screen. These instructions will show you how to customise MP3Gain to just display filenames. (The default display setting shows the directory path as well as the filename, which can make it difficult to work with your MP3 files.)
- Download and install MP3Gain.
- Select the Options tab at the top of the screen.
- Select the Filename Display menu item.
- Select Show File only. The files you choose will now be easy to read in the main display windows.
Add MP3 Files
To start normalizing a batch of files, add them to the MP3Gain file queue.
- Select the Add File(s) icon and use the file browser to navigate to where your MP3 files are located.
- Select files to add to the MP3Gain queue. Do this manually or use standard Windows keyboard shortcuts. (CTRL+A to select all files in a folder, CTRL+mouse button to queue single selections, etc.)
- Once you’re happy with your choices, select the Open button to continue.Select Add Folder to swiftly add a huge number of MP3 files from multiple directories on your hard drive. This will save a significant amount of time when travelling to each folder and highlighting all of the MP3 files.
Analyze the MP3 Files
MP3Gain has two analysis modes: one for single tracks and one for entire albums.
- Select the Track Analysis button if you’ve queued up a collection of unconnected MP3 songs that aren’t part of a whole album. This examines each MP3 file in the list and computes the replay gain depending on the target volume setting (default is 89 dB).
- If you’re working on an album, select Album Analysis mode by clicking the Down Arrow next to the Track Analysis button. All files will now be normalised based on the total volume level of the album. To begin this process, click the Album Analysis option.
- MP3Gain employs the lossless technique Replay Gain for volume normalisation, adjusting the loudness of a track during playback via the ID3 information tag. Some normalisation software resamples each file, which reduces sound quality.
- Following an examination of all files in the queue, MP3Gain displays volume levels and estimated gain, as well as highlighting any tracks in red that are too loud and exhibit clipping.
Normalize Your Music Tracks
Now it’s time to normalize the selected files. Just as in the previous step, there are two modes for applying the normalization.
- Select Track Gain to adjust all the files in the queue for a selection of unrelated MP3 files; this mode is dependent on the target volume in track mode.
- If you want to adjust an album, click the Down Arrow next to the Track Gain indicator and then click Album Gain. This mode normalises all of the album’s tracks based on the target volume, but keeps the loudness disparities between tracks as they were in the original album. To begin fixing all files, click the Album Gain button.
After MP3Gain has finished, the list will show that all files have been normalized.
After the files have been normalized, it’s time to do a soundcheck.
- Navigate to the File menu.
- Select All Files (or use the CTRL+A keyboard shortcut).
- To launch your default media player, right-click anywhere on the marked files and select PlayMP3 File from the pop-up menu.
- Take a listen to your music. Enjoy your music if you’re comfortable with the volume consistency!
- If you need to adjust the volume of your tunes, repeat the instruction with a different goal volume.
Normalize MP3 files to play at the same volume – batch processing
How do I make changes to an MP3 file?
You can’t usually modify an MP3 using your system’s built-in programmes. You must instead use audio or music editing software.
What is the best way to convert WAV files to MP3?
Download audio format converter software, such as VLC Player. Pick Media > Convert/Save > choose the WAV file > Convert/Save > MP3 as the new format.
Where do MP3 files on my iPhone get saved?
iPhones often save files with their corresponding apps—for example, audio in Messages is saved in Messages directory, and so on. MP3s saved as email attachments or via AirDrop should appear in your Music folder, which can be accessed via the Files app.