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1. 发明申请

US20160240204A1 CONCEPT FOR COMBINED DYNAMIC RANGE COMPRESSION AND GUIDED CLIPPING PREVENTION FOR AUDIO DEVICES 审中-公开
标题翻译：组合动态范围压缩和指导音频设备的剪辑预防概念
公开(公告)号：US20160240204A1
公开(公告)日：2016-08-18
申请号：US15136324
申请日：2016-04-22
申请人： Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.
发明人： Fabian KUECH , Christian UHLE , Michael KRATSCHMER , Bernhard NEUGEBAUER , Michael MEIER , Arne BORSUM
IPC分类号： G10L19/16 , G06F3/16 , G10L19/018
摘要： 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 includes an audio processing chain including 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, 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.
摘要翻译：本发明提供了用于音频设备的组合动态范围压缩和引导限幅预防的概念。根据该概念，用于解码音频比特流的音频解码器和与音频比特流相关的元数据比特流包括包括多个调整级的音频处理链，包括用于调整音频输出信号的动态范围的动态范围控制级和引导剪辑防止阶段，用于防止音频输出信号的剪辑; 以及元数据解码器，被配置为接收所述元数据比特流并且从所述元数据比特流中提取动态范围控制增益序列和引导限幅预防增益序列，所述动态范围控制增益序列的至少一部分被提供给所述动态范围控制级，以及被引导的剪辑防止增益序列的至少一部分被提供给被引导的剪辑防止阶段。

2. 发明申请

US20170011749A1 AUDIO ENCODER DEVICE AND AN AUDIO DECODER DEVICE HAVING EFFICIENT GAIN CODING IN DYNAMIC RANGE CONTROL 审中-公开
标题翻译：音频编码器装置和具有动态范围控制中有效增益编码的音频解码器装置
公开(公告)号：US20170011749A1
公开(公告)日：2017-01-12
申请号：US15272653
申请日：2016-09-22
申请人： Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.
发明人： Fabian KUECH , Christian UHLE , Michael KRATSCHMER , Bernhard NEUGEBAUER , Michael MEIER , Stephan SCHREINER
IPC分类号： G10L19/16 , G10L19/022
CPC分类号： G10L19/167 , G10L19/022 , H03G7/007
摘要： An audio encoder device includes an audio encoder configured for producing an encoded audio bitstream from an audio signal having consecutive audio frames; a dynamic range control encoder configured for producing an encoded dynamic range control bitstream from an dynamic range control sequence corresponding to the audio signal and having consecutive dynamic range control frames, wherein each dynamic range control frame of the dynamic range control frames has one or more nodes, wherein each node of the one or more nodes has gain information for the audio signal and time information indicating to which point in time the gain information corresponds.
摘要翻译：音频编码器装置包括：音频编码器，被配置为从具有连续音频帧的音频信号产生编码音频位流; 动态范围控制编码器，被配置为从对应于所述音频信号的动态范围控制序列产生编码的动态范围控制比特流并具有连续的动态范围控制帧，其中所述动态范围控制帧的每个动态范围控制帧具有一个或多个节点其中，所述一个或多个节点的每个节点具有用于音频信号的增益信息和指示增益信息对应于哪个时间点的时间信息。

3. 发明申请

US20230134916A1 CONCEPT FOR COMBINED DYNAMIC RANGE COMPRESSION AND GUIDED CLIPPING PREVENTION FOR AUDIO DEVICES 有权
公开(公告)号：US20230134916A1
公开(公告)日：2023-05-04
申请号：US18148360
申请日：2022-12-29
申请人： Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.
发明人： Fabian KUECH , Christian UHLE , Michael KRATSCHMER , Bernhard NEUGEBAUER , Michael MEIER , Arne BORSUM
IPC分类号： G10L19/16 , H03G11/00 , G10L21/034 , H03G9/00 , G06F3/16 , G10L19/018
摘要： 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 includes an audio processing chain including 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, 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.

4. 发明申请

US20220277756A1 AUDIO ENCODER DEVICE AND AN AUDIO DECODER DEVICE HAVING EFFICIENT GAIN CODING IN DYNAMIC RANGE CONTROL 有权
公开(公告)号：US20220277756A1
公开(公告)日：2022-09-01
申请号：US17664381
申请日：2022-05-20
申请人： Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V
发明人： Fabian KUECH , Christian UHLE , Michael KRATSCHMER , Bernhard NEUGEBAUER , Michael MEIER , Stephan SCHREINER
IPC分类号： G10L19/16 , H03G7/00 , G10L19/022
摘要： An audio encoder device includes an audio encoder configured for producing an encoded audio bitstream from an audio signal having consecutive audio frames; a dynamic range control encoder configured for producing an encoded dynamic range control bitstream from an dynamic range control sequence corresponding to the audio signal and having consecutive dynamic range control frames, wherein each dynamic range control frame of the dynamic range control frames has one or more nodes, wherein each node of the one or more nodes has gain information for the audio signal and time information indicating to which point in time the gain information corresponds.

5. 发明申请

US20210166707A1 CONCEPT FOR COMBINED DYNAMIC RANGE COMPRESSION AND GUIDED CLIPPING PREVENTION FOR AUDIO DEVICES 有权
公开(公告)号：US20210166707A1
公开(公告)日：2021-06-03
申请号：US17174269
申请日：2021-02-11
申请人： Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.
发明人： Fabian KUECH , Christian UHLE , Michael KRATSCHMER , Bernhard NEUGEBAUER , Michael MEIER , Arne BORSUM
IPC分类号： G10L19/16 , H03G11/00 , G10L21/034 , H03G9/00 , G06F3/16 , G10L19/018
摘要： 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 includes an audio processing chain including 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, 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.

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