What is electronic mixer?

Electronic mixers are a device and are used for mixing two or more electronic signals. There are two fundamental types of mixer. The one is the additive mixers and the other is multiplying mixers. The Additive mixers add two signals jointly, and are used for that kind of or such applications as the audio mixing. The Multiplying mixers multiply the signals jointly, and make or produce an output containing together original signals, and new signals that have the sum and difference of the frequency of the original or the innovative signals.