It looks complex, and indeed it is very powerful, but you will see in the control section, lower center in the image, that there are controls for center frequency, gain, and Q, just as in the parametric equalizer above. Pictured above is an advanced plug-in equalizer, which is the FabFilter Pro-Q 2. Q, which sets the range of frequencies either side of the center frequency that will be affected.Gain (labeled dB in the image), which is the amount of cut or boost applied.Center frequency (labeled kHz in the image), which is the frequency around which cut or boost will be performed.A parametric equalizer has these controls. The two mid-range bands are each parametric equalizers. There is also a filter which can be used to cut low frequencies. It features four bands of EQ - high-frequency, high-mid-frequency, low-mid-frequency, and low-frequency. Pictured above is the Slate Digital plug-in emulation of the equalizer that features in each channel of an SSL 4000E mixing console. In the image, the frequency response is flat and there is no cut or boost at any frequency. The positions of the sliders give a rough indication of the frequency response that is set. The operator can shape the frequency curve to their requirements and correct any defects in the audio signal, or apply any enhancement that is considered necessary. Each band can be cut or boosted by up to 12 decibels. Each channel has 30 slider controls, each covering a band of frequencies one-third of an octave wide. Pictured above is a Klark Teknik DN360 2-channel graphic equalizer. To help blend two or more vocals or instruments.Įqualizers may be either hardware units, or software plug-ins.A vocal or instrument sounds dull and needs to be made brighter.A certain range of frequencies sounds unpleasant and needs to be made more mellow.For example, high frequencies (treble frequencies) are too loud and need to be boosted. A certain range of frequencies is too loud.
For example, low frequencies (bass frequencies) are too quiet and need to be boosted. A certain range of frequencies is too quiet.There are several reasons for using an equalizer. Equalizers are used in live sound, broadcasting, and in the recording studio. For example, low frequencies can be made louder or quieter high frequencies can be made louder or quieter mid-range frequencies can be made louder or quieter. An equalizer is used in pro audio to change the loudness balance of ranges of frequencies.
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