| 摘要 |
PROBLEM TO BE SOLVED: To provide a voice decoding device which can suppress deterioration in voice quality, specially, generation of a click sound by sample insertion/extraction processing as much as possible even in case of a failure in clock synchronization between transmission and reception sides, and can easily realize long-time transmission of a continuous voice. SOLUTION: The voice decoding device is equipped with a decoding process part 4 which decodes received voice encoded data into a voice signal, an up-sampler 5 which samples up the voice signal decoded by the decoding process part 4, a sample insertion/extraction processing part 11 which inserts a voice signal sample into a voice signal sample series constituting the sampled-up voice signal or thins the sample series, and a clock split control processing part 10 which detects a state of synchronism with a transmission side of voice encoded data and selects the insertion or thinning of voice signal samples as processing that the sample insertion/extraction processing part 11 should perform according to the detection result. COPYRIGHT: (C)2004,JPO&NCIPI
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