Sound field reproduction apparatus and method, and program
Abstract:
The present technology relates to a sound field reproduction apparatus and method, and a program, enabled to more accurately reproduce a sound field. A spacial filter application unit obtains a virtual speaker array drive signal of an annular virtual speaker array with a radius larger than a radius of a spherical microphone array, by applying a spacial filter to a spacial frequency spectrum of a sound collection signal obtained by having the spherical microphone array collect sounds. An inverse filter generation unit obtains an inverse filter based on a transfer function from a real speaker array up to the virtual speaker array. An inverse filter application unit applies the inverse filter to a time frequency spectrum of the virtual speaker array drive signal, and obtains a real speaker array drive signal of the real speaker array. The present technology can be applied to a sound field reproduction device.
Public/Granted literature
Information query
Patent Agency Ranking
0/0