Audio Normalization

Applies EBU R128 loudness normalization to the audio track.

video-audio-norm accepts a boolean value. When set to true, Imgix analyzes the audio track and applies gain to bring the integrated loudness to the EBU R128 target of -23 LUFS. This ensures consistent perceived volume across different videos regardless of how they were originally recorded or mixed.

Loudness normalization is useful for:

• Maintaining consistent volume across a video library
• Meeting broadcast or streaming platform loudness standards
• Preventing jarring volume shifts when videos play back-to-back

Note that normalization adjusts the overall loudness level — it does not perform dynamic range compression. Loud peaks within the audio are preserved relative to the normalized level.