发明名称 |
METHOD, APPARATUS, AND SYSTEM FOR ENCODING AND DECODING BROADBAND VOICE SIGNAL |
摘要 |
<p>A method, apparatus, and system for encoding or decoding a broadband voice signal are provided. The method includes extracting a linear prediction coefficient (LPC) from the broadband voice signal; outputting a linear prediction (LP) residual signal; pitch-searching a spectrum of the LP residual signal; extracting spectral magnitudes and phases of the LP residual signal, which correspond to a damping factor; obtaining, from among the extracted spectral magnitudes and phases, a first spectral magnitude and a first phase at which a power value of the LP residual signal is minimized; quantizing the first spectral magnitude and the first phase; and decoding the broadband voice signal. The apparatus includes a linear prediction coefficient (LPC) analyzer; an LPC inverse filter; a pitch searching unit; a sinusoidal analyzer; and a phase and spectral magnitude quantizer. The system includes a broadband voice encoding apparatus and a broadband voice decoding apparatus.</p> |
申请公布号 |
WO2008066268(A1) |
申请公布日期 |
2008.06.05 |
申请号 |
WO2007KR05768 |
申请日期 |
2007.11.16 |
申请人 |
SAMSUNG ELECTRONICS CO, . LTD.;CHUNGBUK NATIONAL UNIVERSITY INDUSTRY - ACADEMIC COOPERATION FOUNDATION |
发明人 |
LEE, IN-SUNG;KIM, JONG-HARK;JEONG, GYU-HYEOK;SEO, SANG-WON |
分类号 |
G10L19/12;G10L19/08;G10L19/09 |
主分类号 |
G10L19/12 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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