| 摘要 |
PROBLEM TO BE SOLVED: To reproduce sound image localization very naturally by configuring a plurality of convolvers with a delay means consisting of a plurality of delay elements delaying a direct sound and a reflected sound by a prescribed delay time and with a filtering means. SOLUTION: In the case that a sound signal received from a sound source is a digital signal, it is fed directly to a switch SW, and in the case that the sound signal is an analog signal, the signal is A/D converted and then fed to the switch SW. The supply of the signals is switched selectively and a parallel signal subject to serial parallel conversion is fed to convolvers 6-9. In the convolvers 6-9, the sound signal received from one direction is subject to convolution arithmetic processing on time base with a coefficient fed from a ROM 10, and the result is outputted from output terminals 14, 15, and given to a D/A converter, from which an analog signal is obtained, The analog signal is fed to a speaker or a headphone. |
