Patent ID: 6385320
Filing Date: 2002-05-07
Classification: H04R,H04S

Abstract:
A surround signal processing apparatus, said apparatus comprising:left and right impulse measuring sections for measuring left and right impulses of a head related transfer function for an input audio signal based on a number of a plurality of lattices defined in a three dimensional space, horizontal and vertical angles defined by a center of a dummy head and the plurality of lattices; left and right convolution operators for convolving left and right channel signals of the input audio signal with the left and right impulses of the head related transfer function from the left and right impulse measuring sections, respectively, in order to localize sound image for the input audio signal at an objective localization position in the three-dimension space; and left and right reverberators for imparting first and second reverberant sounds to the left and right channel signals of the input audio signal from the left and right convolution operators, respectively.