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Method and apparatus for encoding digital signals employing bit allocation using combinations of different threshold models to achieve desired bit rates
Method and apparatus for encoding digital signals employing bit allocation using combinations of different threshold models to achieve desired bit rates
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机译:使用位分配使用不同阈值模型的组合来编码数字信号的方法和装置,以实现所需的比特率
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摘要
A method for encoding a digitized audio signal which includes the step of selecting one of two or more psycho acoustic model provided for generating masking thresholds used in a data reduction process. The selecting criterion is the available data rate for the encoded bit stream. Each one of the two or more psycho acoustic models is adapted to a specific data rate of the encoded bit stream. In a second embodiment, the method includes the step of combining two or more masking thresholds resulting from different psycho acoustic models, thereby leading to a more accurate calculation of a masking threshold for the data reduction process. Further, there are appropriate apparatuses for the encoding of digitized audio signals.
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