![]() Loudness normalization Īnother type of normalization is based on a measure of loudness, wherein the gain is changed to bring the average amplitude to a target level. This feature of digital-recording systems, compression and limiting followed by peak normalization, enables contemporary trends in program loudness. When combined with compression/limiting, however, peak normalization becomes a feature that can provide a loudness advantage over non–peak-normalized material. As such, peak normalization is generally used to change the volume in such a way to ensure optimal use of available dynamic range during the mastering stage of a digital recording. ![]() Since it searches only for the highest level, peak normalization alone does not account for the apparent loudness of the content. One type of normalization is peak normalization, wherein the gain is changed to bring the highest PCM sample value or analog signal peak to a given level – usually 0 dBFS, the loudest level allowed in a digital system.
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