Modulate: To mix a voice or data signal onto a carrier for transmission in a communications network. Data is modulated onto the carrier by various methods, such as amplitude modulation (AM), frequency modulatikon (FM), etc.

• 调制:把声音或数据信号混入承载体内，以便在通信网络内传送的情况。数据调制，有各种方法，例如振幅调制（调幅）和频率调制（调频）。