DEVICE FOR AUTOMATICALLY CORRECTING LISTENING POSITION

摘要

PURPOSE:To eliminate the phase interference in all bands by providing the device for automatically correcting listening position capable of automatically and easily correcting the difference in distance, that is, the time difference from each speaker unit in each speaker system to the listening position in the on-vehicle digital audio system. CONSTITUTION:The signal of each channel to each speaker system at the time of reproduction is divided in band by filters 21 and 22 having the cut-off frequency the same as the crossover frequency of the corresponding speaker system. The divided signal is delayed by a delay device 23 by the delay value for correcting the speaker unit obtained by the measurement in addition. The delayed signal for each speaker unit is mixed by a mixer 24 into the signal of each corresponding speaker system and then it is outputted to a split circuit 75 at the speaker system side.