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Speech coding device, speech decoding device, speech coding method, speech decoding method, speech coding program and speech decoding program
Speech coding device, speech decoding device, speech coding method, speech decoding method, speech coding program and speech decoding program
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机译:语音编码装置,语音解码装置,语音编码方法,语音解码方法,语音编码程序和语音解码程序
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摘要
A speech decoding device for decoding a coded speech serial, in which the speech decoding device comprises: bit stream separation means for separating a bit stream that includes the coded speech serial in a coded bit stream , Spectral Band Replication (SBR) supplementary information and temporary envelope supplementary information, the bit stream received from outside the speech decoding device: central decoding means for decoding the encoded bit stream separated by the separation means bit stream to obtain a low frequency component; frequency transformation means for transforming the low frequency component obtained by the central decoding means into a frequency domain; high frequency generating means for generating a high frequency component by copying the low frequency component transformed in the frequency domain by means of frequency transformation from a low frequency band to a high frequency band; high frequency adjustment means to adjust the high frequency component generated by the high frequency generation means to generate a high frequency component adjusted, in accordance with the supplementary information of SBR;
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