| 摘要 |
PURPOSE:To obtain a sound field processor and sound field reproducer capable of creating the sound field of spreaded feeling or natural feeling corresponding to a sound source. CONSTITUTION:An input signal to an input terminal L13 is branched to an output signal to an output terminal LO3 and an input signal to a subtraction circuit SU3. The input signal to the subtraction circuit SU3 is inputted and branched to an input terminal RI3 so as to subtract the signal inputted to the subtraction circuit SU3. The subtracted signal is inputted to a transfer circuit T3 to fetch only a frequency component capable of recognizing the position of the sound source by phase difference or the difference between arriving times from it so as to execute the phase delay of phase delay portion recognized by human beings at the time of reproducing sound. The signal after phase delay is inverted of its phase by a coefficient multiplier K4 and then, mixed with a signal inputted to an input terminal RO3 by an adding circuit AD4 to be outputted to an output terminal RO3. The signal inputted to the input terminal LI3 is outputted to the output terminal LO3. As the inputted signal is outputted to the output terminal LO3 and the signal delayed by the opposite phase is outputted to the output terminal RO3, phase delay can not be recognized at the time of reproduction by connecting the sound source. |
