Patent ID: 6546105
Filing Date: 2003-04-08
Classification: H04R

Abstract:
A sound image localization apparatus comprising:a signal source operable to output an audio signal; a localization angle input device operable to receive an angle of a sound image to be localized; a coefficient control device operable to receive sound image localization angle information from said localization angle input device, read coefficients from a coefficient memory in accordance with the sound image localization angle information, and output the coefficients; first, second, and third multipliers operable to multiply the audio signal output from said signal source by using first, second, and third coefficients output from said coefficient control device, respectively, and output the products; a first signal processing device operable to receive the output from said second multiplier, and process it by using a filter having a predetermined first frequency response; a second signal processing device operable to receive the output from said second multiplier, and process it by using a filter having a predetermined second frequency response; a first adder operable to receive the output from said first multiplier and the output from said first signal processing device, and add these outputs to output the sum; a second adder operable to receive the output from said third multiplier and the output from said second signal processing device, and add these outputs to output the sum; a first output unit operable to output the output of said first adder; and a second output unit operable to output the output of said second adder.