| 摘要 |
PURPOSE:To secure the effect equal to that obtained in a case where a speaker is set at the center position to output the center sound signal by adding the sound signal delay circuits into the sound output circuits which output the sounds to the right and left speakers respectively and therefore delaying the outputs of the right and left speakers in comparison with the output of a center speaker. CONSTITUTION:The program sources selected by the left and right channel program source switching devices 11L and 11R are delayed by the delaying devices 16L and 16R via the sound volume controllers 12L and 12R. These delayed sources are amplified by the power amplifier circuits 14L and 14R via the sound quality correction circuits 13L and 13R and outputted via the speakers 15L and 15R. While the program source selected by a central channel program source switching device 11C is amplified by the power amplifier circuits 14Ca and 14Cb via a sound volume controller 12C and a sound quality correction circuit 13C and then outputted via the speakers 15Ca and 15Cb respectively. Thus it is possible to effectively offer the 3-channel stereophonic sound feeling to the listeners. |
