基本信息:
- 专利标题： METHOD FOR CODING AND DECODING THE WIDENESS OF A SOUND SOURCE IN AN AUDIO SCENE
- 专利标题（中）：法声源的编码和解码WIDTH IN音频场景
- 申请号：EP03757948.9 申请日：2003-10-10
- 公开(公告)号：EP1570462A1 公开(公告)日：2005-09-07
- 发明人： SPILLE, Jens , SCHMIDT, Jürgen
- 申请人： Thomson Licensing S.A.
- 申请人地址： 46, quai A. Le Gallo 92100 Boulogne-Billancourt FR
- 专利权人： Thomson Licensing S.A.
- 当前专利权人： Thomson Licensing S.A.
- 当前专利权人地址： 46, quai A. Le Gallo 92100 Boulogne-Billancourt FR
- 代理机构： Rittner, Karsten
- 优先权： EP02022866 20021014; EP02026770 20021202; EP03004732 20030304
- 国际公布： WO2004036548 20040429
- 主分类号： G10L19/00
- IPC分类号： G10L19/00
摘要：
A parametric description describing the wideness of a non-point sound source is generated and linked with the audio signal of said sound source. A presentation of said non-point sound source by multiple decorrelated point sound sources at different positions is defined. Different dif-fuseness algorithms are applied for ensuring a decorrelation of the respective outputs. According to a further embodiment primitive shapes of several distributed uncorellated sound sources are defined e.g. a box, a sphere and a cylinder. The width of a sound source can also be defined by an opening-angle relative to the listener. Furthermore, the primitive shapes can be combined to do more complex shapes.
公开/授权文献:
IPC结构图谱:
| G | 物理 |
| --G10 | 乐器；声学 |
| ----G10L | 语言分析或合成；语言识别 |
| ------G10L19/00 | 用于冗余度下降情形的语音分析—合成技术；语音编码或解码 |