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Excitation vector generator and a method for generating an excitation vector including a convolution system
Excitation vector generator and a method for generating an excitation vector including a convolution system
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机译:励磁矢量发生器和用于产生包括卷积系统的励磁矢量的方法
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摘要
A random code vector reading section and a random codebook of a conventional CELP type speech coder/decoder are respectively replaced with an oscillator for outputting different vector streams in accordance with values of input seeds, and a seed storage section for storing a plurality of seeds. This makes it unnecessary to store fixed vectors as they are in a fixed codebook (ROM), thereby considerably reducing the memory capacity.
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