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IntroductionPhonetic and segmentvocoders are popular tech-niques used in speech coding at rates on the or-der of 1 0 0 bit/s.These coders are based onrecognition/synthesis technique.They use somekind of speech recognition technique to decom-pose speech signals to sequence of speech units,such as phonetic units or speech segment units,and then transmit indexes and durations of therecognized units.The decoders receive this in-formation,and synthesize speech by concatenat-ing typical instances of… 相似文献
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