Equalizers with linear and non-linear phase. There are several types of equalizers: graphic and parametric, as well as equalizers with linear and non-linear (phase-shifting) phase. Equalizers with linear phase are not

 There are several types of equalizers: graphic and parametric, as well as equalizers with linear and non-linear (phase-shifting) phase.
Linear phase equalizers do not “move” phase, but they have some disadvantages:
consume more computer resources
the previous ringing, which occurs before and after the signal, in the phase-shifting equalizer, the ringing occurs only after.
there is a delay in audio (although many hosts compensate for this)
Equalizers with linear phase are well suited for smooth sounds without clicks and sudden changes in dynamics, used in mastering.
Phase-shifting equalizers add a little dirt to the sound, because do not compensate for the phase shift of the processed range. Used for mixing and do not consume c Equalizers with linear and non-linear phase. There are several types of equalizers: graphic and parametric, as well as equalizers with linear and non-linear (phase-shifting) phase. Equalizers with linear phase are not omputer resources.
Create a new project with one mono channel. Connect Steinberg -> Tools -> TestGenerator to it and generate a sinusoid as shown below.
Next, export File -> Export -> Audio Mixdown. We insert into the project two mono channels with a generated signal. Let's separate each signal by panning to the left and to the right. We hang Steinberg-> Tools-> MultiScope on the master and configure it according to the parameters indicated below. The figure shows what should happen.
The right channel is the lower sine, we will have a processed signal. Left canal - upper sinus - untreated. Let's set in insert the right
channel Waves EQ10 equalizer and cut frequencies below 40 Hz. The sinusoid is displaced.
The orange lines indicate phase shift and the equalizer in this example is phase-shifting.
Now let's replace Waves EQ10 with Waves LinEq, and apply the same parameters.
There was no phase shift, so we saw that the EQ used was with linear phase.
This simple method makes it possible to test any equalizer.

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