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发明授权
CN102779519B 用于同步多声道扩展数据与音频信号以及用于处理音频信号的装置和方法 有权

用于同步多声道扩展数据与音频信号以及用于处理音频信号的装置和方法
摘要：
用于同步多声道扩展数据（132）与音频信号（114），其中所述音频信号包括块划分信息，所述多声道扩展数据包括参考音频信号指纹信息，通过块检测器（300）检测所述音频信号（114）中的块划分信息（302）。之后，指纹计算器（304）依照所述块划分信息（302）执行所述音频信号的块划分，以获得测试音频信号指纹序列（306）。此外，还从多声道扩展数据（132）的参考音频信号指纹信息中提取参考音频信号指纹序列。对这两个指纹序列进行相关以获得相关结果，利用该相关结果控制补偿器（316），以减小或者消除所述多声道扩展数据（132）和所述音频信号（114）之间的时间偏差。
摘要（英）：

For synchronizing multichannel extension data with an audio signal, wherein the audio signal includes block division information and the multichannel extension data include reference audio signal fingerprint information, the block division information in the audio signal is detected by means of a block detector. Thereupon, block division of the audio signal is performed by a fingerprint calculator according to the block division information in order to obtain a sequence of test audio signal fingerprints. In addition to that, a sequence of reference audio signal fingerprints is extracted from the reference audio signal fingerprint information of the multichannel extension data. Both sequences of fingerprints are correlated in order to obtain a correlation result, by which a compensator is controlled in order to reduce or eliminate a time offset between the multichannel extension data and the audio signal.

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