| 摘要 |
PURPOSE:To make the phase relation between a low frequency band and a high frequency band conform with the phase relation in an original sound by making the low frequency band of a sound signal lead its phase relatively against the high frequency band. CONSTITUTION:A sound signal processing part 12 makes a phase of a low frequency component of a supplied sound signal lead relatively against a phase of a high frequency component, and supplies it to a main amplifier 13. The main amplifier 13 brings the supplied sound signal to a power amplification and supplies it to a cone lousspkeaer 14, and drives sounding of the cone loudspeaker 14. In such a way, a high frequency band against a low frequency band of the sound signal is phase-shifted, therefore, a phase relation of the low frequency band and the high frequency band of a sound which is sounded from the cone loudspeaker coincides with a phase relation of an original sound, and the generation of a distortion can be prevented. |
