发明申请
US20120245947A1 MULTI-MODE AUDIO SIGNAL DECODER, MULTI-MODE AUDIO SIGNAL ENCODER, METHODS AND COMPUTER PROGRAM USING A LINEAR-PREDICTION-CODING BASED NOISE SHAPING
有权
多模式音频信号解码器，多模式音频信号编码器，使用基于线性预测编码的噪声形状的方法和计算机程序
- 专利标题： MULTI-MODE AUDIO SIGNAL DECODER, MULTI-MODE AUDIO SIGNAL ENCODER, METHODS AND COMPUTER PROGRAM USING A LINEAR-PREDICTION-CODING BASED NOISE SHAPING
- 专利标题（中）： 多模式音频信号解码器，多模式音频信号编码器，使用基于线性预测编码的噪声形状的方法和计算机程序
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申请号： US13441469申请日： 2012-04-06
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公开(公告)号： US20120245947A1公开(公告)日： 2012-09-27
- 发明人: Max Neuendorf , Guillaume Fuchs , Nikolaus Rettelbach , Tom Baeckstroem , Jeremie Lecomte , Juergen Herre
- 申请人： Max Neuendorf , Guillaume Fuchs , Nikolaus Rettelbach , Tom Baeckstroem , Jeremie Lecomte , Juergen Herre
- 主分类号： G10L19/00
- IPC分类号： G10L19/00
摘要：
A multi-mode audio signal decoder has a spectral value determinator to obtain sets of decoded spectral coefficients for a plurality of portions of an audio content and a spectrum processor configured to apply a spectral shaping to a set of spectral coefficients in dependence on a set of linear-prediction-domain parameters for a portion of the audio content encoded in a linear-prediction mode, and in dependence on a set of scale factor parameters for a portion of the audio content encoded in a frequency-domain mode. The audio signal decoder has a frequency-domain-to-time-domain converter configured to obtain a time-domain audio representation on the basis of a spectrally-shaped set of decoded spectral coefficients for a portion of the audio content encoded in the linear-prediction mode and for a portion of the audio content encoded in the frequency domain mode. An audio signal encoder is also described.
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