Patent ID: 7369668
Filing Date: 2008-05-06
Classification: G10K

Abstract:
1. A method for processing directed sound in an acoustic virtual environment in an electronic device, said acoustic virtual environment comprising at least one sound source, the method comprising: attaching a reference direction and a set of selected directions to the at least one sound source, each selected direction differing from said reference direction, establishing a direction dependent filtering arrangement having at least one parameter disposed to at least partly determine a filtering effect of the direction dependent filtering arrangement, said at least one parameter enabling the direction dependent filtering arrangement to model that said at least one sound source radiates a different sound to said reference direction than to a direction that deviates from said reference direction, for each selected direction defining at least one value for each of said at least one parameter, and filtering, with the direction dependent filtering arrangement, a signal that represents sound propagating from said at least one sound source in said reference direction in order to produce a signal that represents sound propagating from said at least one sound source in said direction that deviates from said reference direction.