Manual - AEQ International

4.3.4.1. Advanced configuration of Compressor/Limiter.From the initial screen of the pre-sets advanced information menu (“Digital Sound Processes”)you can configure and activate/deactivate the Compressor/Limiter operation.When you select the “Active” checkbox, the “Configure” button gets active and gives youaccess to the graphic display where the Compressor/Limiter associated parameters can bemodified.Dynamics processors are used to modify the dynamic ranges of an audio signal to adapt it tospecific needs or to produce certain sound effects. A compressor enables you to reduce thedynamic range of the signal. Your purpose may be to adapt a signal with a very broad dynamicrange to a circuit that will not support such wide variations in level, or to generate a certainsound in a signal.The graph represents the variation produced in the different levels of the signal applied to thisfunction. On the horizontal axis are the input levels, while the vertical axis shows output levels.The “Compressor/Limiter” function acts as a “constant gain” compressor; that is, below thethreshold, all input signals are amplified (or not amplified) equally, while above the threshold,the input levels are reduced to a greater or lesser degree according to the compression ratio.If the compression range selected is the maximum, the function will act as a limiter in such away that the signals that exceed the selected threshold at input will not exceed a certain level atoutput. For example, with a threshold = 0 dB, a gain of 10 dB and a compression ratio of 1:50,you will ensure that all the signals that exceed 10 dB at input will also be output at 10 dB, whilethe signals that are below the threshold will have an overall gain of 10 dB.The available controls are:• “THRESHOLD”: this is the threshold above which the compressor will act. Signal levelsthat exceed this threshold will be affected by the compressor settings. The thresholdrange varies from -42dB to +22dB.AEQ CAPITOLUltra-compact digital audio mixer88