Audio Mixer Circuits


An audio mixer circuit, also called a mixing console, is an electronic circuit for combining, and modifying audio signals. In the process, the source signals level, frequency content, dynamics, and panoramic position are manipulated and effects such as reverb may be added. Audio mixers can be analog or digital type. Digital mixing consoles use Digital Signal Processing concepts and analog mixers are usually based on op-amps electronic circuits.

Audio mixing is practiced for music, film, television and live sound. The process is generally carried out by a mixing engineer operating a mixing console or digital audio workstation. The input audio signals could be anything from microphone inputs, to an audio output of a cd player, to an output of a PC sound card or any other type of analog audio sources.

The basic mixer will be able to combine those signals from different signal sources, change the volumes of each input channel, as well as the overall volume of the mixer output, or the equalization, bass, midrange, treble on each audio channel.


A multi channel audio mixer circuit based on LM3900 quad opamap IC. The audio mixer circuit has four channels, two mic and two line inputs.

FET Audio Mixing and Switching Circuit Diagram Two or more signals can be switched and /or mixed without annoying clicks by using this fet audio.

This multi channel audio mixer circuit diagram is built using LM3900 and is used in sound recording to produce most interesting audio for listeners.

Circuit Projects Nonstop-Free Electronic Circuits Project Diagram and Schematics ... The image below shows a Block diagram of the entire mixer featuring four Input Amplifier Modules followed by fou...

audio mixer with transistors and potentiometer- Music and Electronics. ... However, many more intricacies are involved when we talk of any real life application of any circuit. Therefore the follow...

Multi channel audio mixer circuit This multi channel audio mixer circuit has been developed using IC LM3900 which is a quad amplifier. This circuit is developed using 4 LM3900 IC's. This particula...

3 channel simple audio mixer

Audio Mixer using op amp 741

How to set up a basic audio mixer (Audio mixer tutorial 1)

How to hook up an audio mixer to a PC - Introduction to Behringer Xenyx 502 [...