音箱分频器电流特性分析(英文)

Analysing of current-frequency characteristic of loudspeaker enclosure divider

传统的音箱分频器计算公式将扬声器作为纯电阻 ,得出了平坦的电压频率特性曲线 .实际中广泛使用的电动式扬声器具有一定的电感 ,且为电流驱动器件 ,其输出声压与电流成正比 .为了得到符合实际的音箱声压频率特性 ,在考虑扬声器电感特性的前提下 ,分析了音箱分频器的电流特性 ,得出了不平坦的频率特性曲线 。

classical design formula of loudspeaker enclosure divider is on the basis of regarding speaker as a pure resistor,thus it can be gotten plain votage frequency response curve. But electrodynamic loudspeaker used extensively takes on inductance,and it is a device driven by current,its output sound pressure is proportional to current.To obtain actual sound pressure frequency response of loudspeaker enclosure,current frequency characteristic of loudspeaker enclosure divider is analyzed under considering inductance of loudspeaker. Plainless chracteristic curve is gotten and corresponding compensation method is given.