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1.发明授权System and method for non-destructively normalizing loudness of audio signals within portable devices 有权用于在便携式设备内对音频信号的响度进行非破坏性归一化的系统和方法公开(公告)号：US08903729B2
公开(公告)日：2014-12-02
申请号：US13576386
申请日：2011-02-03
CPC分类号： G10L19/22 , G10L19/02 , G10L19/0208 , G10L19/167 , G10L19/26 , H03G3/3089 , H03G3/32 , H03G7/007
摘要： Many portable playback devices cannot decode and playback encoded audio content having wide bandwidth and wide dynamic range with consistent loudness and intelligibility unless the encoded audio content has been prepared specially for these devices. This problem can be overcome by including with the encoded content some metadata that specifies a suitable dynamic range compression profile by either absolute values or differential values relative to another known compression profile. A playback device may also adaptively apply gain and limiting to the playback audio. Implementations in encoders, in transcoders and in decoders are disclosed.
摘要翻译： 许多便携式播放设备不能解码和播放具有宽带宽和宽动态范围的编码音频内容，具有一致的响度和清晰度，除非编码音频内容已经为这些设备专门准备。 通过使用编码的内容包含一些通过相对于另一已知压缩简档的绝对值或差分值来指定合适的动态范围压缩简档的元数据来克服该问题。 播放装置还可以自适应地对播放音频应用增益和限制。 公开了在编码器，代码转换器和解码器中的实现。
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2.发明申请System and Method for Non-destructively Normalizing Loudness of Audio Signals Within Portable Devices 有权便携式设备内音频信号响度的非破坏性系统和方法公开(公告)号：US20120310654A1
公开(公告)日：2012-12-06
申请号：US13576386
申请日：2011-02-03
IPC分类号： G10L19/00
CPC分类号： G10L19/22 , G10L19/02 , G10L19/0208 , G10L19/167 , G10L19/26 , H03G3/3089 , H03G3/32 , H03G7/007
摘要： Many portable playback devices cannot decode and playback encoded audio content having wide bandwidth and wide dynamic range with consistent loudness and intelligibility unless the encoded audio content has been prepared specially for these devices. This problem can be overcome by including with the encoded content some metadata that specifies a suitable dynamic range compression profile by either absolute values or differential values relative to another known compression profile. A playback device may also adaptively apply gain and limiting to the playback audio. Implementations in encoders, in transcoders and in decoders are disclosed.
摘要翻译： 许多便携式播放设备不能解码和播放具有宽带宽和宽动态范围的编码音频内容，具有一致的响度和清晰度，除非编码音频内容已经为这些设备专门准备。 通过使用编码的内容包含一些通过相对于另一已知压缩简档的绝对值或差分值来指定合适的动态范围压缩简档的元数据来克服该问题。 播放装置还可以自适应地对播放音频应用增益和限制。 公开了在编码器，代码转换器和解码器中的实现。
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