Alesis DEQ830 User Manual download pdf (Page 29)

3 Basics of Equalization

This section will describe how equalization works and explain the

functions of the DEQ830’s controls.

What is equalization?

An equalizer boosts or cuts a frequency range. The DEQ830 is a

graphic equalizer, which means it has many fixed frequency bands

that can be cut or boosted. The term “graphic” is appropriate

because the combined settings of the bands often resemble a

curve, or “graph.” Thus, it is often possible to know what the unit

is doing to the sound simply by looking at it from a distance. The

other type of equalizer, a parametric equalizer, can sweep the

frequency bands and adjust the frequency range affected by the cut

or boost of each band. Alesis sells a parametric equalizer called the

PEQ-450.

The most basic level of control on a graphic equalizer is the gain

setting for a band. Each of the bands represents a predetermined

frequency range, and its gain setting controls the amount of boost

or cut for that frequency range. A setting of 0 dB means that the

signal will not be affected in the area of those audio frequencies.

Depending on the program material, boosting or cutting just one

frequency can have a significant impact on the sound. When all of

the frequency bands are taken together, the impact can be huge.

Equalization can be used for:

• Adjusting the timbre of an instrument, voice, mix, or effect

• Cutting or boosting frequencies to make a source easier to mix

with other tracks

• Compensating for a less-than-ideal recording

• Compensating for less-than-ideal control room or auditorium

acoustics

• Creating a filter effect

• Eliminating buzz, noise, or hum

Equalizers can make your recorded tracks sound polished and

professional. Chapter 4 will describe some specific settings for

various instruments and applications.

1 2 ... 24 25 26 27 28 29 30 31 32 33 34 ... 69 70

No comments

Alesis DEQ830 User Manual Page 29