| 摘要 |
PROBLEM TO BE SOLVED: To provide a graphic equalizer capable of adjusting a phase difference for each frequency band generated before reaching a listening point and reproducing music by further higher sound quality. SOLUTION: A delay time calculating/setting part 14 controls switches SW0 -SWn so as to successively input signals for delay time measurement outputted from a sound source 13 for delay time measurement to band-pass filters BP1 -BPn . Then, the time after inputting the signals from the sound source 13 for the delay time measurement until inputting sound detection signals from a microphone 16 is measured, delay time for each frequency band is calculated and the delay amount of delay devices TD1 -TDn is set based on the result. |
