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31. 发明申请

WO2008110870A2 SPEECH CODING SYSTEM AND METHOD 审中-公开
标题翻译：语音编码系统和方法
公开(公告)号：WO2008110870A2
公开(公告)日：2008-09-18
申请号：PCT/IB2007004491
申请日：2007-12-20
申请人： SKYPE LTD , NILSSON MATTIAS , LINDBLOM JONAS , VAFIN RENAT , ANDERSEN SOREN VANG
发明人： NILSSON MATTIAS , LINDBLOM JONAS , VAFIN RENAT , ANDERSEN SOREN VANG
IPC分类号： G10L19/00 , G10L19/005 , G10L19/26 , G10L21/02
CPC分类号： G10L19/26 , G10L19/005 , G10L21/0364
摘要： A system for enhancing a signal regenerated from an encoded audio signal. The system comprises a decoder arranged to receive the encoded audio signal and produce a decoded audio signal, a feature extraction means arranged to receive at least one of the decoded and encoded audio signal and extract at least one feature from at least one of the decoded and encoded audio signal, a mapping means arranged to map the at least one feature to an enhancement signal and operable to generate and output the enhancement signal, whereby the enhancement signal has a frequency band that is within the decoded audio signal frequency band, and a mixing means arranged to receive the decoded audio signal and the enhancement signal and mix the enhancement signal with the decoded audio signal.
摘要翻译：一种用于增强从编码音频信号再生的信号的系统。该系统包括：解码器，被设置为接收编码的音频信号并产生解码的音频信号;特征提取装置，被配置为接收解码和编码的音频信号中的至少一个，并从解码的和编码的音频信号中的至少一个提取至少一个特征经编码的音频信号;映射装置，其经布置以将所述至少一个特征映射到增强信号且可操作以产生并输出所述增强信号，由此所述增强信号具有在所述经解码音频信号频带内的频带; 被配置为接收解码的音频信号和增强信号并将增强信号与解码的音频信号混合的装置。

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