发明名称 |
VOICE ENCODING DEVICE, VOICE DECODING DEVICE, AND METHODS THEREFOR |
摘要 |
<p>An encoding device capable of realizing a scalable CODEC of a high performance. In this encoding device, an LPC analyzing unit (551) analyzes an input voice (301) efficiently with a synthesized LPC parameter obtained from a core decoder (305), to acquire an encoded LPC coefficient. An adaptive code note (552) is stored with its sound source codes, as acquired from the core decoder (305). The adaptive code note (552) and a probabilistic code note (553) send sound source samples to a gain adjusting unit (554). This gain adjusting unit (554) multiplies the individual sound source samples by an amplification based on the gain parameters acquired from the core decoder (305), and then adds the products to acquire sound source vectors. These vectors are sent to an LPC synthesizing unit (555). This LPC synthesizing unit (555) filters the sound source vectors acquired at the gain adjusting unit (554), with the LPC parameter, to acquire a synthetic sound.</p> |
申请公布号 |
WO2006025502(A1) |
申请公布日期 |
2006.03.09 |
申请号 |
WO2005JP16033 |
申请日期 |
2005.09.01 |
申请人 |
MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.;MORII, TOSHIYUKI |
发明人 |
MORII, TOSHIYUKI |
分类号 |
G10L19/04;G10L19/12;G10L19/14 |
主分类号 |
G10L19/04 |
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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