A device that “effects” the audio signal passing through it is called and effects processor. They are also known as plug-ins in software based processors. Unlike with the dynamic processor only a part of the signal is sent to the effects processor instead of the entire signal. A clean single is more commonly known as the ‘dry’ signal and the effected signal is the ‘wet’ signal. An ‘auxiliary send’ is used to send some of the incoming signal to an external output, which then sends it to an effects processor. The ‘auxiliary sendlevel determines how much of the incoming level is sent. The effected signal is sent through the effect processor output back into the mixing console either to another channel or to an input called the ‘auxiliary return’. The signal sent to the effects processor is always mono, and the returning signal is always stereo.
Within the software environment it is more efficient to load up a plug-in on an auxiliary track with the effect (e.g. reverb) rather than loading up a plug-in for each track. You can then set up a send for each track that needs reverb and individually control the level of the send.
Equalisation (EQ) involves cutting or boosting particular frequencies within the signal.
HF & LF Shelving Filters
High Frequency (HF) and Low Frequency (LF) shelving filters have a fixed frequency that work on and are exactly the same as Bass and Treble on a standard Hi-Fi.
Parametric EQ
Parametric EQ is a more selective process of equalisation as you can cut or boost a certain frequency region rather than cutting or boosting all the bass/treble frequencies. The three main controls in parametric EQs are Centre Frequency, “Q” and Cut & Boost. “Q” determines how selective the EQ is and can be calculate by the following formula: Q = Centre Frequency / Bandwidth.
The -3dB Point
The cut-off point of a filter is measured by the frequency at which its level has decreased by 3dB. The -3dB point is known as the half-power point.
Within the software environment it is more efficient to load up a plug-in on an auxiliary track with the effect (e.g. reverb) rather than loading up a plug-in for each track. You can then set up a send for each track that needs reverb and individually control the level of the send.
Equalisation (EQ) involves cutting or boosting particular frequencies within the signal.
HF & LF Shelving Filters
High Frequency (HF) and Low Frequency (LF) shelving filters have a fixed frequency that work on and are exactly the same as Bass and Treble on a standard Hi-Fi.
Parametric EQ
Parametric EQ is a more selective process of equalisation as you can cut or boost a certain frequency region rather than cutting or boosting all the bass/treble frequencies. The three main controls in parametric EQs are Centre Frequency, “Q” and Cut & Boost. “Q” determines how selective the EQ is and can be calculate by the following formula: Q = Centre Frequency / Bandwidth.
The -3dB Point
The cut-off point of a filter is measured by the frequency at which its level has decreased by 3dB. The -3dB point is known as the half-power point.
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