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A comment on Piano teacher gets copyright claim for Beethoven’s Moonlight Sonata [video]. Parent comment

Re:Piano teacher gets copyright claim for Beethoven’s Moonli... by cma on Saturday May 01, 2021 @10:25PM (#27011851)
> Another notable addition in this version of the AAC standard is Perceptual Noise Substitution (PNS). In that regard, the AAC profiles (AAC-LC, AAC Main and AAC-SSR profiles) are combined with perceptual noise substitution and are defined in the MPEG-4 audio standard as Audio Object Types.

https://en.wikipedia.org/wiki/Advanced_Audio_Coding

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