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Patent
Title

Concept for combined dynamic range compression and quided clipping prevention for audio devices

Abstract
The invention provides a concept for combined dynamic range compression and guided clipping prevention for audio devices. An audio decoder for decoding an audio bitstream and a metadata bitstream related to the audio bitstream according to the concept comprisesan audio processing chain configured to receive a decoded audio signal derived from the audio bitstream and to adjust characteristics of the audio signal in order to produce an audio output signal, the audio adjustment chain comprising a plurality of adjustment stages including a dynamic range control stage for adjusting a dynamic range of the audio output signal and a guided clipping prevention stage for preventing clipping of the audio output signal; anda metadata decoder configured to receive the metadata bitstream and to extract dynamic range control gain sequences and guided clipping prevention gain sequences from the metadata bitstream, at least a part of the dynamic range control gain sequences being supplied to the dynamic range control stage, and at least a part of the guided clipping prevention gain sequences being supplied to the guided clipping prevention stage.
Inventor(s)
Borsum, Arne
Kratschmer, Michael  
Küch, Fabian  
Meier, Michael  
Neugebauer, Bernhard  
Uhle, Christian  
Link to Espacenet
https://worldwide.espacenet.com/publicationDetails/biblio?DB=worldwide.espacenet.com&FT=D&CC=EP&NR=3522157A1
Patent Number
3522157
Publication Date
2019
Language
English
Fraunhofer-Institut für Integrierte Schaltungen IIS  
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