Regenerating the sound signaling of the rear left and right channel with the virtual acoustic image normal position central processing unit and the sub- speaker where

摘要

PROBLEM TO BE SOLVED: To expand the optimum monitoring range by reducing the changes in the sound image stereophonic feeling.;SOLUTION: An output terminal 41 outputs a sound signal including a processed first main signal so that a sound image is positioned to the right rear side of the monitoring location. An output terminal 43 outputs a signal including an auxiliary signal which is processed to position the sound image to the right rear side of the monitoring location, and to result in band limitation. An output terminal 42 outputs a sound signal containing a second main signal processed to position a sound image to the left rear side of the monitoring location. An output terminal 44 outputs a signal, containing an auxiliary signal which is processed to position the sound image to the left rear side of the monitoring location, and to result in band limitation. Speakers connected to such output terminals emit sound signals. A sound image due to the auxiliary signal is positioned previously, and change in the positional sensing of the sound image felt by a listener can be reduced, even if the monitoring position is deviated, by conducting delaying process to the first and second main signals and then limiting bandwidth of the auxiliary signal to a lower band.;COPYRIGHT: (C)2007,JPO&INPIT