发明名称 |
ENCODING DEVICE AND ENCODING METHOD |
摘要 |
<p>Disclosed are an encoding device and encoding method capable of improving the quality of a decoded signal under very low bit rate conditions using a small amount of computation. A spectrum correction unit (302) performs correction processing on the subspectrum in each subband in such a manner that samples equal to or greater than a subspectrum average value are left unchanged while samples smaller than the subspectrum average value are replaced by zero. As a result of this, it is possible to significantly reduce the number of bits required to quantize the subspectrums without substantial reduction in quality in a local search unit (303) and in a multi-rate indexing unit (304).</p> |
申请公布号 |
EP2525354(A1) |
申请公布日期 |
2012.11.21 |
申请号 |
EP20110732775 |
申请日期 |
2011.01.12 |
申请人 |
PANASONIC CORPORATION |
发明人 |
YAMANASHI, TOMOFUMI;OSHIKIRI, MASAHIRO |
分类号 |
G10L19/02;G10L19/032;H03M7/30 |
主分类号 |
G10L19/02 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|