Patent ID: 9219974
Filing Date: 2015-12-22
Classification: H04H,H04R,H04S

Abstract:
1. An apparatus for simultaneously controlling a near sound field and a far sound field, the apparatus comprising: a filter generating unit to generate a filter to simultaneously control the near sound field and the far sound field based on a ratio of a first sound pressure energy at a location of a listener to a second sound pressure energy related to the far sound field and the near sound field excluding the location of the listener wherein the near sound field corresponds to a region from a sound source to the location of the listener; and a filter processing unit to generate a multi-channel signal by processing a filter value of the generated filter and an input signal, wherein the second sound pressure energy is obtained based on sound pressure enemies of a first dark zone, which corresponds to a region excluding the location of the listener from the near sound field, and a second dark zone which corresponds to the far sound field.