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APPARATUS AND METHOD FOR DECODING AN ENCODED AUDIO SIGNAL USING A CROSS-OVER FILTER AROUND A TRANSITION FREQUENCY

机译:使用围绕过渡频率的交越滤波器对编码的音频信号进行解码的装置和方法

摘要

Apparatus for decoding an encoded audio signal comprising an encoded core signal (1), comprising: a core decoder (1400) for decoding the encoded core signal (1401) to obtain a decoded core signal; a tile generator (1404) for generating one or more spectral tiles having frequencies not included in the decoded core signal using a spectral portion of the decoded core signal; and a cross-over filter (1406) for spectrally cross-over filtering the decoded core signal and a first frequency tile having frequencies extending from a gap filling frequency (309) to an upper border frequency or for spectrally cross-over filtering a first frequency tile and a second frequency tile.
机译:用于对包括编码核心信号(1)的编码音频信号进行解码的设备,包括:核心解码器(1400),用于对编码核心信号(1401)进行解码以获得解码核心信号;以及瓦片生成器(1404),用于使用解码核心信号的频谱部分来生成具有不包括在解码核心信号中的频率的一个或多个频谱瓦片;交叉滤波器(1406),用于对解码后的核心信号和具有从间隙填充频率(309)延伸到上边界频率的频率的第一频率片进行频谱交叉滤波,或者用于对第一频率进行频谱交叉滤波磁贴和第二频率磁贴。

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