发明申请
US20100217607A1 Audio Decoder, Audio Encoder, Methods for Decoding and Encoding an Audio Signal and Computer Program
有权
音频解码器，音频编码器，解码和编码音频信号和计算机程序的方法
- 专利标题： Audio Decoder, Audio Encoder, Methods for Decoding and Encoding an Audio Signal and Computer Program
- 专利标题（中）： 音频解码器，音频编码器，解码和编码音频信号和计算机程序的方法
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申请号： US12694912申请日： 2010-01-27
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公开(公告)号： US20100217607A1公开(公告)日： 2010-08-26
- 发明人: Max Neuendorf , Jeremie Lecomte , Markus Multrus , Stefan Bayer , Frederik Nagel , Guillaume Fuchs , Julien Robilliard , Nikolaus Rettelbach , Ralf Geiger , Bernhard Grill
- 申请人： Max Neuendorf , Jeremie Lecomte , Markus Multrus , Stefan Bayer , Frederik Nagel , Guillaume Fuchs , Julien Robilliard , Nikolaus Rettelbach , Ralf Geiger , Bernhard Grill
- 主分类号： G06F17/00
- IPC分类号： G06F17/00
摘要：
An audio decoder for providing a decoded representation of an audio content on the basis of an encoded representation of the audio content comprises a linear-prediction-domain decoder core configured to provide a time-domain representation of an audio frame on the basis of a set of linear-prediction domain parameters associated with the audio frame and a frequency-domain decoder core configured to provide a time-domain representation of an audio frame on the basis of a set of frequency-domain parameters, taking into account a transform window out of a set comprising a plurality of different transform windows. The audio decoder comprises a signal combiner configured to overlap-and-add-time-domain representations of subsequent audio frames encoded in different domains, in order to smoothen a transition between the time-domain representations of the subsequent frames. The set of transform windows comprises one or more windows specifically adapted for a transition between a frequency-domain core mode and a linear-prediction-domain core mode.