补充一点,上面第3种方法也可以使用DI BOX。下图是著名厂商Whirlwind专为PC、笔记本、CD播放机设计的DI BOX(PC DI)
今天看见有网友说PC连接调音台不能使用DI BOX,因为笔记本、PC的音频输出不是高阻抗。其实这种说法是不妥当的。下面是Whirlwind公司对DI BOX功能解释。
A DI serves several basic functions:
• It converts a high impedance signal to a low impedance signal (although it will also accept a low impedance signal from a preamp, keyboard, active pickup or other electronic device).
• It converts an unbalanced signal to balanced.
• It reduces a strong instrument or line level signal (and sometimes even speaker level signal) to a mic level signal suitable for connection to the mic input of a mixing console.
• It isolates electronic equipment on stage from the mixing console, which can help eliminate interference and noise caused by electrical interaction or ground loops.
DI BOX有以下几个基本功能
• 使高阻信号转化为低阻信号(但是它也能接受从前置放大器,键盘,电箱琴或其他电子设备的低阻信号)
• 使非平衡信号转化为平衡信号
• 降低乐器的强信号电平或线路输入电平(有时甚至是送至音箱强度的电平)至麦克风信号电平强度,使其能与调音台的话筒输入连接
• 隔离舞台电子设备和调音台,消除由电或地环路引起的干扰和噪声。
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本帖最后由 葛亮GL 于 10-4-23 20:43 编辑 ]