发明名称 |
Spatial audio processor and a method for providing spatial parameters based on an acoustic input signal |
摘要 |
A spatial audio processor for providing spatial parameters based on an acoustic input signal has a signal characteristics determiner and a controllable parameter estimator. The signal characteristics determiner is configured to determine a signal characteristic of the acoustic input signal. The controllable parameter estimator for calculating the spatial parameters for the acoustic input signal in accordance with a variable spatial parameter calculation rule is configured to modify the variable spatial parameter calculation rule in accordance with the determined signal characteristic. |
申请公布号 |
US9626974(B2) |
申请公布日期 |
2017.04.18 |
申请号 |
US201213629192 |
申请日期 |
2012.09.27 |
申请人 |
Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V. |
发明人 |
Thiergart Oliver;Kuech Fabian;Schultz-Amling Richard;Kallinger Markus;Del Galdo Giovanni;Kuntz Achim;Mahne Dirk;Pulkki Ville;Laitinen Mikko-Ville |
分类号 |
H04R5/00;G10L19/008;H04R29/00 |
主分类号 |
H04R5/00 |
代理机构 |
Perkins Coie LLP |
代理人 |
Glenn Michael A.;Perkins Coie LLP |
主权项 |
1. A spatial audio processor for providing spatial parameters based on an acoustic input signal, the spatial audio processor comprising:
a signal characteristics determiner configured to determine a signal characteristic of the acoustic input signal, wherein the acoustic input signal comprises at least one directional component; and a controllable parameter estimator for calculating the spatial parameters for the acoustic input signal in accordance with a variable spatial parameter calculation rule; wherein the controllable parameter estimator is configured to modify the variable spatial parameter calculation rule in accordance with the determined signal characteristic; wherein the signal characteristics determiner is configured to determine a stationarity interval of the acoustic input signal; and wherein the controllable parameter estimator is configured to modify the variable spatial parameter calculation rule in accordance with the determined stationarity interval, so that an averaging period for calculating the spatial parameters is comparatively longer for a comparatively longer stationarity interval and is comparatively shorter for a comparatively shorter stationarity interval. |
地址 |
Munich DE |