| 摘要 |
This technology pertains to an audio processing device and audio processing system that make it possible to make sound localization more stable. A virtual speaker is considered to be positioned along the bottom side of a quadrilateral on a spherical surface, the vertices of said quadrilateral being the locations of four speakers that surround a target sound location. Three-dimensional VBAP using the virtual speaker and the upper-left and upper-right speakers is used to compute the upper-left and upper-right speaker gains and the virtual speaker gain needed to position sound at the target sound location. Two-dimensional VBAP using the lower-left and lower-right speakers is used to compute the lower-left and lower-right speaker gains needed to position sound at the virtual speaker, and said gains are multiplied by the aforementioned virtual speaker gain to obtain the lower-left and lower-right speaker gains needed to position sound at the target sound location. This technology can be applied to an audio processing device. |
