Patent ID: 7162047

Claim:
An audio reproducing apparatus comprising: first filtering means for convoluting into an digital input audio signal, an impulse response to which a transfer function from a position where the sound image of the input audio signal is located to the left ear of a listener is converted on a time domain; second filtering means for convoluting into said input digital audio signal, an impulse response to which a transfer function from the position where the sound image of the input audio signal is located to the right ear of the listener is converted on the time domain; a delay circuit for delaying said input digital audio signal by a predetermined period and producing a delayed output signal; third filtering means for extracting a low-frequency component from the delayed output signal; wherein the third filtering means comprises a first low-pass filter and a second low-pass filter, and the third filtering means sends the output signal of the first low-pass filter to the first adder means, and sends the output signal of the second low-pass filter to the second adder means; first adder means for adding the output signal of said second low-pass filter of the third filtering means to the output signal of the first filtering means to obtain a first output audio signal; and second adder means for adding the output signal of said second low-pass filter of the third filtering means to the output signal of the second filtering means to obtain a second output audio signal.