COMPOSER PRO MDX2200
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The RATIO control is used to adjust the expansion ratio when the signal drops below the threshold value. This control determines whether the unit works as an expander (low ratio level) or as a gate (1:8). The expansion ratio can be set from 1:1 to 1:8.
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When a signal below the threshold value is applied, the
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To optimally adapt the expander/gate to the program material, the RELEASE switch allows for selecting a SLOW or FAST release time. When you engage this switch, the expander responds with a slow release. As a general rule, percussive material with little or no ambience is processed using the FAST release mode, whereas signals with long decay or with heavy ambience require the SLOW release mode.
2.2 Compressor section
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Fig. 2.3: Control elements of the compressor section
The THRESHOLD control sets the threshold point for the compressor section. It has a range of
The RATIO control determines the ratio between the input and output level for all signals exceeding the threshold point by more than 10 dB. The control range can be adjusted from 1:1 to oo:1.
The ATTACK control determines the rate by which the compressor responds to the signal which ex- ceeds the threshold. This control can be adjusted from 1 to 150 milliseconds.
The RELEASE control determines the rate that the compressor returns to unity gain after falling below the threshold level. This control can be adjusted from 0.05 to 5 seconds.
By activating the AUTO switch, the ATTACK and RELEASE controls are disabled and the attack and release rates are automatically derived from the programme material. This function allows for unobtru- sive musical compression of signals or mixes with widely varying dynamics. Only if set to “MANUAL” will the settings of the attack and release controls function.
The OUTPUT control allows for the increase or decrease of the output signal by a maximum of 20 dB. Thus, a level loss due to the compression or limiting process can be compensated for.
Please note when using the THRESHOLD control of the peak limiter section, that the OUTPUT control of the compressor section precedes the peak limiter section. If the OUTPUT control is set too high, this can result in continuous peak limiting (see item 19 “THRESHOLD control”).
When activated, the SC EXT switch severs the connection between the audio input and the side chain path, whilst at the same time allowing an external signal to be sourced at the SC RETURN jack on the rear panel.
10 | 2. CONTROL ELEMENTS |