User`s manual

AEQ FORUM - DIGITAL AUDIO MIXER FOR BROADCAST APPLICATIONS
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the signal. A short time will enable the compressor to adapt more quickly to pulse
fluctuations in the signal.
• (Compression) Ratio: is the compression ratio. A ratio of 1:1 does not involve any
variation in the signal, as the level of the input signal is maintained at the output. A ratio
of 2:1 indicates that the level of an input signal which exceeds the threshold will be
reduced to half at the output. The highest ratio available is 50:1, which will be used to
implement signal limiters. The limiter must reduce all signals exceeding a certain level
to that level.
• Gain: This enables you to apply a general gain to the signal. This entails a general
increase of the signal level, which will be especially noted at low input levels that are
under the threshold set. A general increase in the level of the signal may generate
saturation at the output, even when the signal is being limited.
• OK, accept configuration. You will need to re-confirm the acceptance of the confirmation
by clicking OK in the main screen of the advanced pre-sets.
• CANCEL, cancels your configuration.
4.3.4.2. Advanced configuration of Noise Gate
From the Advanced menu screen Pre-set Settings you can activate or deactivate the noise gate
through the option NOISE GATE ACTIVE (tic-box).
Press the “Configure” button to access the graphic display where the operational parameters for
the noise gate are modified.
Configuration screen Noise Gate
A noise gate is a dynamics processor that lets signals through whose level exceeds a certain
threshold, strongly attenuating the signal levels below that threshold and thus muting noise. It
enables its user to eliminate extraneous noise from a signal source, whether it is background
noise in the studio—in the case of a microphone—or the background noise generated by a
playback device—for example, a tape.
The controls available are:
• Threshold: Determines the level above which signal is allowed through the gate.
• Attack time: The time defined as the time for the gate to react to a signal that is
exceeding the threshold.
• Release time: The time defined as the time that the gate should remain open once the
signal exceeding threshold has disappeared. Hold time: The time defined as the time
that the gate should remain open when the signal falls below the threshold.
• Range