Definition of Audio normalization
Audio normalization is the application of a constant amount of gain to an audio recording to bring the amplitude to a target level (the norm). Because the same amount of gain is applied across the entire recording, the signal-to-noise ratio and relative dynamics are unchanged. Normalization is one of the functions commonly provided by a digital audio workstation and is used in broadcast and streaming media delivery.
Two principal types of audio normalization exist. Peak normalization adjusts the recording based on the highest signal level present in the recording. Loudness normalization adjusts the recording based on perceived loudness.
Normalization differs from dynamic range compression, which applies varying levels of gain over a recording to fit the level within a minimum and maximum range. Normalization adjusts the gain by a constant value across the entire recording.
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Questions people ask
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- How is compression different from normalization? · Sound Design SE
- Audio normalization across multiple clips and for Youtube, in After Effects · Video Production SE
Frequently asked questions
What is Audio normalization?
Audio normalization is the application of a constant amount of gain to an audio recording to bring the amplitude to a target level (the norm).