Mixing Console

The mixer is a device used to control volume levels, pan positions, and frequency content of individual tracks. Discover how it shapes the overall balance and sound of a mix.

mixer
Figure 1 - Hardware mixing console

The primary role of a mixer is to combine multiple audio signals into a single output, but it does much more than that. With various controls, mixers allow fine-tuning of audio levels, stereo positioning, equalization, and effects processing, helping you shape the overall sound of a mix.

Key Mixer Functions

Mixers offer several essential controls for crafting your audio:

  • Volume and Pan: Control individual track levels using faders, and position sounds within the stereo field using pan knobs.
  • Equalization (EQ): Adjust bass and treble frequencies for each track using EQ knobs.
  • Effects & Processing: Mix in effects using insert or send/return options, allowing external effects processors to enhance the sound.
  • Signal Metering: Meters help monitor levels, preventing distortion by showing if a signal is too high.

Even though the basics are straightforward, mastering the art of mixing can take years of practice.

Common Mixer Controls Explained

Mixers have multiple identical channel strips, each with a range of controls for managing audio inputs. Mastering these controls will help you achieve a well-balanced, clean mix. Here’s a breakdown of the main features:

Control What it does
Channel Inputs
Channel inputs
Connect microphones, instruments or other audio sources to the mixer.
Gain Control
Gain control
Sets the input level of the incoming audio signal before it reaches the rest of the channel.
Equalization (EQ) Controls
EQ controls
Adjusts the tonal balance of the signal by boosting or cutting different frequency ranges.
Aux Sends
Aux sends
Sends a variable amount of the channel signal to an auxiliary bus, commonly used for monitors or effects.
Effect Send
Effect send
Sends part of the channel signal to an external or internal effects processor.
Pan Control
Pan control
Positions the channel within the stereo field, from left to right.
Mute / Solo
Mute and Solo controls
Mute silences the channel, while Solo allows you to hear that channel in isolation.
PFL
PFL control
Pre-Fader Listen allows you to monitor the channel signal before it reaches the channel fader.
Channel Fader
Channel fader
Controls the final level of the channel in the mix.
Channel Meter
Channel meter
Displays the level of the audio signal, helping you monitor levels and avoid clipping.