MP3 Normalizer
macOS / Musique
MP3 Normalizer enhances the listening experience by batch equalizing music volume, boosting voice loudness, and ensuring seamless transitions between tracks.
MP3 NORMALIZER IS AN IDEAL OPTION FOR:
• Equalizing the loudness across a song list;
• Balancing the volume throughout a voice recording;
• Audio compression for mobile and car listening;
• Improving the quality of old and poorly-sounded records.
INPUT FORMATS
MP3 Normalizer accepts .mp3 and .wav files, generating a new MP3 file with an adjusted volume level.
CHOOSING A NORMALIZATION METHOD AND LEVEL
In the Settings / Effects window, you can manage volume normalization and audio effects. To boost the volume of MP3 tracks, you can use Peak or Loudness (EBU R128) Normalization methods. The enabled Automatic Volume Control feature ensures clear and audible voice recordings.
MP3 Normalizer applies the Loudness (EBU R128) Normalization algorithm with a Target Level of -18 LUFS by default. EBU R128 algorithm intelligently analyzes sound, similar to how we hear it. It is an excellent solution for standardizing perceived loudness levels across a list of songs, ensuring a seamless listening experience.
The Peak Normalization method adjusts the loudest peak to the target level without compressing or distorting the sound.
AUTOMATIC VOLUME CONTROL
Automatic Volume Control makes quiet parts of voice records clear and hearable. It automatically amplifies silent segments of audio. We recommend enabling Automatic Volume Control while processing interviews, podcasts, and audiobooks.
MAKE MP3 TRANSITIONS SEAMLESS
Applying audio effects enhances the listening experience by ensuring smooth and continuous music playback. You can control the duration of the fade-in, fade-out, and silent threshold for trimming. To apply these effects along with volume adjustment, enable them in the Settings / Effects.
AUTOMATIC MP3 SETTINGS
MP3 Normalizer automatically calculates the Bit Rate, Sample Rate, and Channels to apply the best settings to your MP3 files. Automatic MP3 settings ensure high sound quality and save time and hard drive space. If you prefer to convert to a specific Bit Rate, Channels, or other settings, adjust them in the Settings / Format tab.
BATCH PROCESSING
MP3 Normalizer can adjust volume of unlimited files and folders in a single click. It also supports multiple normalizations simultaneously. Additionally, the application can replicate the structure of source folders when adjusting the volume of an entire music collection.
TAGGING ON THE FLY
MP3 Normalizer can transfer all tags from source .mp3 and .wav files, create missing metadata from file and folder names, or load music tags from online databases, such as MusicBrainz, AcoustID, and CoverArt. If you want to check or modify tags after normalization, please use our Tag Editor.
MP3 RENAMER & ORGANIZER
Rename and organize normalized MP3 files into folders and playlists according to Artist, Album, and other audio metadata chosen in the Settings / General / Destination Files.
INTEGRATION WITH ITUNES / APPLE MUSIC
MP3 Normalizer can quickly and easily export tracks to a new or existing iTunes or Music app playlist.
CONVERT ENTIRE AUDIO COLLECTIONS WITH PREMIUM FEATURES
MP3 Normalizer is free to download, but some features are limited. Upgrading to Premium unlocks Batch Processing, Metadata Downloader, and Audio Effects, allowing for effortless volume leveling of your audio collection.
The Premium Features subscription auto-renews unless canceled in your App Store Account Settings before the billing period ends. Terms of Use MP3 Normalizer: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ .
CUSTOMER SUPPORT
Please contact support@amvidia.com for any issues or feature requests. If you enjoy MP3 Normalizer, please take a moment to leave a review on the App Store.
Quoi de neuf dans la dernière version ?
Normalize and clean up your audio in one pass. MP3 Normalizer makes loudness consistent, fixes clipping, and preserves quality— fast, batch-friendly, and now fully tuned for macOS 26. Enjoy a more straightforward UI, reliable tagging, and stable processing for large libraries.
• Compatibility with macOS 26 Tahoe
• New app icon to match the macOS 26 design
• Improved MP3 volume normalization & batch audio processing
Premium Features subscribers benefit from faster performance, smoother tag handling, and full access to batch tools and advanced normalization options.
