Skip to content


Close this search box.

What is an Audio Mixer?

What does an Audio Mixer Do?

An electrical device called an audio mixer is used to create music by channelling incoming audio impulses while controlling factors including volume level, tone, location, and other dynamics. This apparatus is referred to as a soundboard (sound board), mixing console, or mixer when used for professional sound mixing. Traditional audio mixers are tangible pieces of equipment that have inputs for microphones, auxiliary line-ins, drum machines, and other analogue and digital devices. Software-based mixing technique is also accessible, but it needs a high-end sound card with instrument inputs. Alternately, pre-recorded tracks can be downloaded to a computer and used using audio editing software.

Modern digital mixers come in a variety of quality and price ranges and are designed for both professional and nonprofessional use. While specialised ones are frequently used in studios, digital recorders are frequently used in conjunction with them in the non-professional market. The least cost, non-professional models have a built-in mixer and 4-track digital recording. All other things being equal, additional channels increase the cost, with high-end devices having 24 channels.

Each track on a mixer or soundboard has its own channel, such as a channel for the drums, a channel for the lead guitar, a channel for the rhythm and bass, a channel for the keyboards, and so on. The sound engineer has the most amount of control over every component and part of the project when each instrument is kept on its own track, which also keeps channels free of artefacts.

Panoramic potentiometers, commonly referred to as “pan pots,” are another feature of a competent audio mixer. To generate a complete stereo image, this control moves an audio track to the left, centre, or right inside the mix. Drums often fill the background, with lead and rhythm guitars at either end of the mix and the vocals in the middle. This creates an acoustical atmosphere where the listener feels as though the band is all around them. The image also has keyboards, drums, and other instruments that have been placed with care. A drum roll or lead riff may occasionally “slide” or “roll” (pan) from one stereo channel to the other for effect, giving the impression of movement.

In music production, the drum track is often created first because it serves as the framework for the other songs. A second track can be “bounced” to the drum track once it is finished in order to free up another channel, and so on. There are restrictions on the number of tracks that may be bounced, but even a basic 4-track recorder with a built-in mixer can typically produce eight tracks or more. The final product is always mixed down to a 2-track stereo recording called the “master,” from which a compact disc can be created for duplication.

A portable, palm-sized 4-channel audio mixer can be adequate for musicians who perform at home and want to record and compose their own creative music. Some models have a variety of guitar effects as well as built-in digital bass and drum kits for accompaniment. Despite lacking the power or precision of larger, more expensive models, these budget audio recorder/mixers have incredible feature sets for their class. Many models have USB or Firewire interfaces, making it easier to transmit the finished product to a computer for burning to a compact disc. Some models employ flash cards for limitless memory.

Digital variants with 8-16 tracks can be the preferable option if the artist wants something with more advanced editing features. With a single device that is half the size of a laptop and a small portion of its weight, the user may lay down their songs, mix them, and burn the master to CD. The burner is not included in a comparable but less expensive model; instead, the user must transfer the music to their computer in order to burn it.

Although common in studio production, a 24-track audio mixer is typically more soundboard than the ordinary person needs. These versions can be very expensive, as should be expected, while a low-end one can be purchased for less. It would be prudent for a musician to read both expert and customer feedback before making a purchase.

How Does an Audio Mixer Work?

A mixing console or, more generally, an audio mixer are other names for a sound mixer. This is a machine that mixes, balances, and combines various audio signals from sources such as microphones, instruments, synthesisers, and recorded audio. The sound signals are subsequently delivered to the output, also known as the result, where they are amplified and relayed via a sound system. The mixer serves as the focal point for combining and blending sound signals from various sources. The output is then delivered to the monitor speakers via the mixer after the output is adjusted for stereo imaging, effects, and ambience.

What are channel strips?

The quantity of channel strips, faders, and knobs on the mixing desk can often make certain people uneasy. The majority of them are actually merely duplicates with only a few key commands to learn and master. For instance, a DJ mixer may simply have 2 channels, which would be used to combine two signals from the sound source, whereas an audio mixer for a large theatre or performance may have 100 channels or more.

Mixers come in a variety of varieties:

Both digital and more widely used analogue signals can be received by a digital mixer.
Analog signals can be received and processed by an analogue mixer.
Digital recording software is used by a software mixer, which is computer-based.

The quantity of input and output channels that a mixer has an impact on how it functions. A 168 mixer, on the other hand, signifies that there are 16-in and 8-out possibilities on the mixing console with 16 input channels and 8 output channels for recording a multi-track. For example, an 82 mixer means that there are 8 input channels being mixed into 2 output channels for a stereo recording. A mixer’s capacity to combine and blend instruments and sound signals increases with the number of input channels it has.