A sound mixer is also known as a mixing console or more commonly an audio mixer. This is an electronic device used for mixing, balancing, and combining different sounds and audio signals, sources like microphones, instruments, and synthesizers, or previously recorded audio.
The adjusted sound signals are then sent to the output, which is then transmitted and amplified using a sound system. The mixer is the central hub where sound signals from different sources are combined and mixed. Effects and ambience can also be added, EQ and stereo imaging are balanced and then the output is directed to the monitor speakers using the mixer.