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METHOD AND SYSTEM FOR ENCODING LEFT AND RIGHT CHANNELS OF A STEREO AUDIO SIGNAL WITH SELECTION BETWEEN TWO AND FOUR SUBFRAME MODELS DEPENDING ON THE BIT BUDGET
METHOD AND SYSTEM FOR ENCODING LEFT AND RIGHT CHANNELS OF A STEREO AUDIO SIGNAL WITH SELECTION BETWEEN TWO AND FOUR SUBFRAME MODELS DEPENDING ON THE BIT BUDGET
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机译:通过比特预算的两种和四种子帧模型之间的选择来编码立体声音频信号的左右声道的方法和系统
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摘要
A stereo sound encoding method and system for encoding left and right channels of a stereo sound signal, down mix the left and right channels of the stereo sound signal to produce primary and secondary channels, encode the primary channel, and encode the secondary channel. Encoding the secondary channel comprises analyzing coherence between coding parameters calculated during the secondary channel encoding and coding parameters calculated during the primary channel encoding to decide if the coding parameters calculated during the primary channel encoding are sufficiently close to the coding parameters calculated during the secondary channel encoding to be re-used during the secondary channel encoding.
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