Apparatus and method of encoding and decoding audio signals...

Details Apparatus and method of encoding and decoding audio signals... Apparatus and method of encoding and decoding audio signals...

2006-07-07

2011-10-04

Smits, Talivaldis Ivars (Department: 2626)

Data processing: speech signal processing, linguistics, language

Speech signal processing

For storage or transmission

C704S500000, C704S219000

Reexamination Certificate

active

08032368

ABSTRACT:
In one embodiment, a channel in a frame of the audio signal is subdivided into a plurality of blocks according to a subdivision hierarchy. The subdivision hierarchy has more than one level, and each level being associated with a different block length. At least two of the blocks have different lengths. An optimum prediction order is determined for each block based on a maximum permitted prediction order and a length of the block, where a prediction order is the number of linear prediction coefficients. The optimum prediction order is selected as a minimum one of the global prediction order and the local prediction order. The global prediction order is determined based on the maximum permitted prediction order, and the local prediction order is determined based on the length of the block.

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