IMPROVE QUALITY OF ENTIRE AUDIO COLLECTION IN ONE CLICK

MP3 Normalizer improves the sound of MP3 files, supports Peak and Loudness (EBU R128) Normalization methods and Automatic Volume Control for processing of speech records. 

Simultaneously with normalization, MP3 Normalizer can apply Audio Effects, such as the Trimming of Silence, Fade-In, and Fade-Out for better playback.

MP3 Normalizer for Mac - Improve the sound, Loudness EBU R128 and Peak normalization, trimming, fade-in, fade-out effects
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MP3 NORMALIZER IS AN IDEAL OPTION FOR: 

There are just some common cases of using MP3 Normalizer. However, you can apply it for a much wider range of purposes.

 

INPUT FORMATS 

MP3 Normalizer accepts .mp3 and .wav files. You will have a new MP3 file with an adjusted volume level and applied audio effects as an output.

Please note that if you would like to normalize audio files of other formats, you have to convert them to MP3 first. We recommend using To MP3 Converter for this purpose.

 

EASY AS ONE, TWO ... 

To normalize your MP3 files, you have to drop them in the application icon or window. The application will let you know when volume adjusting is done. MP3 Normalizer supports batch processing to process a single file or an entire tree of folders at one time. 
Read More: Getting Started >>

MP3 Normalizer for Mac - Custom destination folder, As Source folder, export normalized files to iTunes or Apple Music, export to iTunes or Apple Music 
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TRUE BATCH PROCESSING

MP3 Normalizer allows to adjust a volume of the unlimited number of files and folders in one click and supports multiple normalizations simultaneously. If you process an entire tree of folders, MP3 Normalizer will replicate the structure of source folders. It is especially convenient if you need to adjust the volume of the entire music collection.
Read More: Getting Started >>

Tag Editor for MAC is Softpedia editor's choise.
"...batch normalize MP3 and WAV files in no time."
- mac.softpedia.com

 

CUSTOMISABLE NORMALIZATION METHOD

By default, MP3 Normalizer analyses every audio track and applies the Peak Normalization algorithm with Target Level 0 dBFS.  You can normalize either by Peak or Loudness (EBU R128) methods by choosing the required method in Preferences. To improve the quality of voice records - we recommend enabling Automatic Volume Control, a feature that applies special processing of voice records.
Read More: Audio Effects and Volume Adjusting on Mac OS >>
Read More: Peak and Loudness (EBU R128) Normalization on Mac >>
Read More: Automatic Volume Control >>
 

AUTOMATIC OUTPUT SETTINGS

MP3 Normalizer estimates Bit Rate, Sample Rate, and Channels and applies optimal settings to output MP3s. As a result, it guarantees the best possible sound quality, saves your time and hard drive space. 

If you would like to convert to a special Bit Rate, Channels, etc., change settings in the Preferences.
Read More: Preferences / MP3 Format >>

MP3 Normalizer for Mac - Customization of MP3 settings, auto-selection of parameters, automatic bit rate, automatic sample rate, automatic channels, Variable Bit Rate, Constant Bit Rate
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 *Note, we advise select Bitrate at 128 kbps, or lower meaning if you burn normalized MP3 files to CD and listen to it in your car. Some CD car players couldn’t read MP3 files with Bitrates higher than 128 kbps. 

 

AUDIO EFFECTS

MP3 Normalizer can apply fade-in and fade-out; trim silence in the start and end of audio tracks automatically. To use the effects simultaneously with volume adjusting, just enable them in Preferences.

Read More: Audio Effects and Volume Adjusting on Mac OS >>
Read More: Automatic Volume Control >>
Read More: Trimming Silence and Noise Automatically >>
Read More: Fade-In & Fade-Out Audio Effects >>

MP3 Normalizer for Mac - Manage normalization and audio effects, Loudness EBU R128 and Peak normalization, Automatic Volume Control, trimming, fade in, fade out effects, limiting duration of output audio
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TAGS TRANSFER

MP3 Normalizer transfers all tags from source .mp3 or .wav file to normalized file. If you would like to check or modify tags after normalization, please, use the Tag Editor.
Read More: Preferences / Tags >>

MP3 Normalizer for Mac - improve and load missing tags when normalizing, load tags from MusicBrainz or Discogs, load tags from source files, load tags from file names or folder names 
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INTEGRATION WITH ITUNES

MP3 Normalizer allows exporting converted tracks to new or existing iTunes playlists quickly and easily.
Read More: Exporting converted files to iTunes >>

 

Just compare:

 

Quiet old audio

Quiet old audio

Same audio normalized to 0 dBFS

Same audio normalized to 0 dBFS

 

Audio Book

Audio Book

Audio Book normalized to 0 dBFS<br>with Automatic Volume Control

Audio Book normalized to 0 dBFS
with Automatic Volume Control

 

Interview with a quiet segments

Interview with a quiet segments

Same Interview normalized to 0 dBFS<br> with Automatic Volume Control

Same Interview normalized to 0 dBFS
with Automatic Volume Control

 

Audio with clicks

Audio with clicks

Same Audio normalized to 0 dBFS<br>with Automatic Volume Control

Same Audio normalized to 0 dBFS
with Automatic Volume Control