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This paper presents a high quality harmonic excited linear predictive (HE-LPC) speech coder operating at 2 kb/s based on a harmonic excitation model with two bands. The system incorporates novel features such as: combined pitch detection, residual harmonic matching voicing determination, extraction and interpolation of residual harmonic magnitudes. Subjective listening tests indicate that this coder has same quality as that of Federal Standard MELP coder at 2.4 kb/s whatever training database is from Chinese or English. ©2004 IEEE.
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年份: 2004
页码: 149-152
语种: 英文
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