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Bluetooth speakers have a fundamental frequency of the resonance point, at this frequency, the voice output will be the largest and distorted is also the largest, easy to cause the low frequency sound box with a replay of the uneven degree increase and deterioration of the balance, distortion increases sharply. And it is designed to resemble a reasonably making a phase inverted type loudspeaker, down the mini speaker basic resonant peak, around to separate the two small peaks and two small peaks of equal size, the frequency response of the speaker to the low expansion. Basic wipe vibration peak down, the distortion is reduced
Far East University
Tainan City, Taiwan