发明名称 |
Speech coding apparatus and method |
摘要 |
<p>Provided is an encoding device which can reduce the encoding distortion as compared to the conventional technique and can obtain a preferable sound quality for auditory sense. In the encoding device, a shape quantization unit (111) quantizes the shape of an input spectrum with a small number of pulse positions and polarities. The shape quantization unit (111) sets a pulse amplitude width to be searched later upon search of the pulse position to a value not greater than the pulse amplitude width which has been searched previously. A gain quantization unit (112) calculates a gain of a pulse searched by the shape quantization unit (111) for each of bands.</p> |
申请公布号 |
EP2120234(B1) |
申请公布日期 |
2016.01.06 |
申请号 |
EP20080710503 |
申请日期 |
2008.02.29 |
申请人 |
PANASONIC INTELLECTUAL PROPERTY CORPORATION OF AMERICA |
发明人 |
MORII, TOSHIYUKI;OSHIKIRI, MASAHIRO;YAMANASHI, TOMOFUMI |
分类号 |
G10L19/032;G10L19/02;G10L19/10 |
主分类号 |
G10L19/032 |
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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