MP3 Normalizer
MP3 Normalizer is a macOS audio utility for balancing the volume of MP3 and WAV files in batches and preparing tracks for more consistent playback.
What is MP3 Normalizer?
MP3 Normalizer is a Mac audio utility for adjusting the loudness of MP3 and WAV files so tracks play at a more consistent volume. It is designed for users who manage music libraries, podcasts, spoken-word recordings, audiobooks, or other audio collections and want to process many files at once instead of correcting each track manually. The app supports batch normalization across files and folders, including Peak normalization and Loudness normalization based on EBU R128. It also includes optional audio effects such as silence trimming and fade-in or fade-out processing, and it preserves tags when creating normalized output files. MP3 Normalizer is published by Amvidia Limited and fits well into macOS workflows for organizing and preparing audio before playback or library import.
Key features
- Normalize MP3 and WAV files to a more consistent playback volume.
- Process multiple files and folders in batch jobs.
- Choose between Peak normalization and Loudness normalization using EBU R128.
- Apply fade-in, fade-out, and silence trimming during processing.
- Preserve audio tags when creating normalized output files.
- Adjust output settings such as bitrate, sample rate, and channels.
- Export processed tracks to iTunes or Music library workflows.
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Safety overview
Status: Mostly safe
This is a legitimate audio-processing app for macOS. Access to your music or audio files is normal for its purpose, and the main practical risk is that processed output can overwrite or replace the listening version you prefer if you do not keep originals organized. Review output settings before running large batch jobs, and keep a backup of important recordings until you confirm the results sound right.
Recommendation: Keep MP3 Normalizer if you use it to level audio collections, spoken recordings, or music tracks. If you no longer edit or normalize audio on your Mac, you can remove it without affecting macOS, though any saved settings and app-specific support files may no longer be needed.
Common paths
/Applications/MP3 Normalizer.app
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