Normalize Audio

Normalize audio volume to standard level

Max file size: 100MB. Supported formats: MP3, WAV, OGG, M4A
What is normalization? Normalization automatically adjusts audio volume to a standard level using the EBU R128 loudnorm algorithm. Perfect for matching volume across multiple audio files or fixing recordings with inconsistent volume levels.
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Free Online Audio Normalizer - Normalize Audio Volume

Why Use Our Audio Normalizer?

Our audio normalizer is a professional free online tool that automatically adjusts audio volume to a consistent, standard level using the industry-standard EBU R128 loudnorm algorithm. Whether you're preparing audio for podcasts, videos, music playlists, or broadcasting, our tool ensures all your audio files have the same perceived loudness.

Simply upload your audio file and click "Normalize Audio". The tool will analyze the audio's loudness and apply precise adjustments to achieve optimal volume levels without distortion or clipping. You can compare the original and normalized versions side-by-side before downloading.

Key Features

  • EBU R128 algorithm - Professional broadcast standard
  • Side-by-side comparison - Compare original vs normalized
  • No distortion - Smart normalization prevents clipping
  • All formats supported - MP3, WAV, OGG, M4A, and more
  • Free to use - No registration required
  • Secure & Private - Files are automatically deleted

How to Normalize Audio Online

  1. Upload your audio file - Select an audio file with inconsistent or non-standard volume levels.
  2. Click "Normalize Audio" - Our audio normalizer online will analyze the loudness using EBU R128.
  3. Wait for processing - The tool applies precise volume adjustments to achieve optimal levels.
  4. Compare results - Listen to both original and normalized versions side-by-side.
  5. Download - Get your professionally normalized audio file ready to use.

What is Audio Normalization?

Audio normalization is the process of adjusting the volume of audio to a target level to ensure consistency across multiple files. Unlike simple volume changes that multiply the entire audio by a fixed amount, normalization analyzes the perceived loudness (using measurements like LUFS - Loudness Units relative to Full Scale) and applies intelligent adjustments.

The EBU R128 standard is used by broadcasters and streaming services worldwide to ensure consistent audio levels. This prevents the jarring experience of having to adjust volume between different audio files or tracks.

Pro Tip: Use audio normalization when preparing multiple audio files for a playlist, podcast series, or video project. This ensures your listeners don't have to constantly adjust their volume. It's especially useful for recordings from different sources, microphones, or recording sessions that have varying volume levels. Normalization makes your content sound more professional and polished!
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