发明名称 |
AUDIO ENCODING DEVICE, AUDIO ENCODING METHOD, AND AUDIO ENCODING PROGRAM |
摘要 |
<p>By using a high-range sub-band signal, a correction coefficient corresponding to importance of auditory sense is calculated to correct a noise level and generate additional signal information, thereby accurately reflecting the noise level of the sub-band important in the auditory sense. Thus, it is possible to calculate additional signal information reflecting the noise level of the sub-band important in the auditory sense according to importance with a small calculation amount. The calculation amount can further be reduced by using a correction coefficient based on the characteristic of an ordinary audio signal.</p> |
申请公布号 |
WO2006075563(A1) |
申请公布日期 |
2006.07.20 |
申请号 |
WO2006JP300112 |
申请日期 |
2006.01.06 |
申请人 |
NEC CORPORATION;SHIMADA, OSAMU |
发明人 |
SHIMADA, OSAMU |
分类号 |
G10L19/02;G10L19/20;G10L21/02;G10L21/038 |
主分类号 |
G10L19/02 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|