发明授权
US09576585B2 Method and apparatus for normalized audio playback of media with and without embedded loudness metadata of new media devices
有权
用于具有和不具有新媒体设备的嵌入式响度元数据的媒体的归一化音频回放的方法和装置
- 专利标题： Method and apparatus for normalized audio playback of media with and without embedded loudness metadata of new media devices
- 专利标题（中）： 用于具有和不具有新媒体设备的嵌入式响度元数据的媒体的归一化音频回放的方法和装置
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申请号： US14811203申请日： 2015-07-28
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公开(公告)号： US09576585B2公开(公告)日： 2017-02-21
- 发明人: Robert Bleidt
- 申请人： Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.
- 申请人地址： DE Munich
- 专利权人： Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.
- 当前专利权人： Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.
- 当前专利权人地址： DE Munich
- 代理机构： Perkins Coie LLP
- 代理商 Michael A. Glenn
- 主分类号： G10L19/00
- IPC分类号： G10L19/00 ; G10L19/012 ; G10L19/26
摘要：
A decoder device for decoding a bitstream so as to produce therefrom an audio output signal, the bitstream having audio data and optionally loudness metadata containing a reference loudness value, wherein a gain control device has a reference loudness decoder configured to create a loudness value, wherein the loudness value is the reference loudness value in case that the reference loudness value is present in the bitstream; wherein the gain control device has a gain calculator configured to calculate a gain value based on the loudness value and based on a volume control value, which is provided by an external user interface allowing a user to control the volume control value, and a loudness processor configured to control the loudness of the audio output signal based on the gain value.
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