Center signal localization sense improvement meeting of multi-channel reproduction system

摘要

0001] The present invention relates to a de-channel reproduction system employing a Dolby prologic decoder, and more particularly, to a circuit for improving a sense of positioning of a center signal.;The center signal localization improvement circuit according to the present invention includes a first variable delay unit delaying the left signal L according to the magnitude of the center polarity signal EC generated by the Dolby Pro Logic decoder and providing the left signal L to the left signal speaker; And the center polarity signal generated from the Dolby Pro Logic decoder;And a second variable delay device for delaying the right signal R according to the size of the first signal delay line EC and providing the right signal R to the right signal speaker.;The center signal localization improvement circuit according to the present invention has an effect of improving the positioning feeling of the center signal relatively by delaying the left signal and the right signal more than the center signal depending on the degree of the image signal and the center signal being positioned.