发明名称 |
Encoding device and method including encoding of error transform coefficients |
摘要 |
A voice encoding device accurately encodes a spectrum shape of a signal having a strong tonality such as a vowel. The device includes: a sub-band divider which divides a first layer error conversion coefficient to be encoded into M sub-bands so as to generate M sub-band conversion coefficients; a shape vector encoder which performs encoding on each of the M sub-band conversion coefficients so as to obtain M shape encoded information and calculates a target gain of each of the M sub-band conversion coefficients; a gain vector former which forms one gain vector by using M target gains; a gain vector encoder which encodes the gain vector so as to obtain gain encoded information; and a multiplexer which multiplexes the shape encoded information with the gain encoded information. |
申请公布号 |
US8554549(B2) |
申请公布日期 |
2013.10.08 |
申请号 |
US20080528659 |
申请日期 |
2008.02.29 |
申请人 |
OSHIKIRI MASAHIRO;MORII TOSHIYUKI;YAMANASHI TOMOFUMI;PANASONIC CORPORATION |
发明人 |
OSHIKIRI MASAHIRO;MORII TOSHIYUKI;YAMANASHI TOMOFUMI |
分类号 |
G10L19/12 |
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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