Invention Grant
US08510120B2 Apparatus and method of processing an audio signal, utilizing unique offsets associated with coded-coefficients 有权
处理音频信号的装置和方法,利用与编码系数相关联的唯一偏移量

Apparatus and method of processing an audio signal, utilizing unique offsets associated with coded-coefficients
Abstract:
In one embodiment, the method includes receiving an audio signal including a prediction residual of a block of digital audio data and coded coefficient values. Table index information is obtained from the digital audio data. The table index information identifies a table from a plurality of tables to select. A set of prediction coefficient values are reconstructed from the coded-coefficient values. This reconstruction includes selecting a table including offset values and entropy parameters from the plurality of tables based on the table index information, wherein 16, 19 or 20 of unique offsets are associated with coded-coefficients of the first twenty coefficients, first entropy decoding the coded-coefficient values using entropy codes defined by the entropy parameters from the selected table, and calculating a set of prediction coefficient values based on the offset values from the selected table and the decoded coded-coefficient values.
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