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Concept for combined dynamic range compression and guided clipping prevention for audio devices
Concept for combined dynamic range compression and guided clipping prevention for audio devices
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机译:组合动态范围压缩和防止音频设备裁剪的概念
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摘要
Concept for combined dynamic range compression and guided clipping prevention for audio devices 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 comprises an 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; and a 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.
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