Vector quantization apparatus

Details Vector quantization apparatus Vector quantization apparatus

H - Electricity

03

M

H03M 7/00 (2006.01) G10L 19/00 (2006.01) G10L 9/14 (1995.01)

Patent

CA 2159571

In a vector quantization apparatus for expressing a target vector by using a code vector designated by an index, an error evaluating section performs error evaluation for a code vector without considering a code error of the index and error evaluation with considering the code error, a first selecting section selects a small number of indexes from a larger number of indexes on the basis of an evaluation result without considering the code error, and a second selecting section selects, on the basis of an evaluation result with considering the code error, an index used to express the target vector from a small number of indexes selected by the first selecting section.

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