发明公开
EP2951815A1 AUDIO ENCODERS, AUDIO DECODERS, SYSTEMS, METHODS AND COMPUTER PROGRAMS USING AN INCREASED TEMPORAL RESOLUTION IN TEMPORAL PROXIMITY OF ONSETS OR OFFSETS OF FRICATIVES OR AFFRICATES
有权
音频编码器，音频解码器系统，方法和具有增强的临时解决方案在时间接近插入计算机程序或抵消或擦音塞擦音
- 专利标题： AUDIO ENCODERS, AUDIO DECODERS, SYSTEMS, METHODS AND COMPUTER PROGRAMS USING AN INCREASED TEMPORAL RESOLUTION IN TEMPORAL PROXIMITY OF ONSETS OR OFFSETS OF FRICATIVES OR AFFRICATES
- 专利标题（中）： 音频编码器，音频解码器系统，方法和具有增强的临时解决方案在时间接近插入计算机程序或抵消或擦音塞擦音
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申请号： EP14702516.7申请日： 2014-01-28
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公开(公告)号： EP2951815A1公开(公告)日： 2015-12-09
- 发明人: DISCH, Sascha , HELMRICH, Christian , MULTRUS, Markus , SCHNELL, Markus , TRITTHART, Arthur
- 申请人： Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.
- 申请人地址： Hansastraße 27c 80686 München DE
- 专利权人： Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.
- 当前专利权人： Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.
- 当前专利权人地址： Hansastraße 27c 80686 München DE
- 代理机构： Burger, Markus
- 优先权： US201361758078P 20130129
- 国际公布： WO2014118179 20140807
- 主分类号： G10L19/025
- IPC分类号： G10L19/025 ; G10L21/038
摘要：
An audio encoder for providing an encoded audio information on the basis of an input audio information has a bandwidth extension information provider configured to provide bandwidth extension information using a variable temporal resolution and a detector configured to detect an onset of a fricative or affricate. The audio encoder is configured to adjust a temporal resolution used by the bandwidth extension information provider such that bandwidth extension information is provided with an increased temporal resolution at least for a predetermined period of time before a time at which an onset of a fricative or affricate is detected and for a predetermined period of time following the time at which the onset of the fricative or affricate is detected. Alternatively or in addition, the bandwidth extension information is provided with an increased temporal resolution in response to a detection of an offset of a fricative or affricate. Audio encoders and methods use a corresponding concept.
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