SoundCraft RM1d, User Manual

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RM1d/RM1ds User Guide
Dynamics Dynamics
Dynamics Dynamics
Dynamics
The RM1d offers Gating, Compression and Limiting capabilities to each input channel on the console. The choices are:
l
Gate
l
Compressor
l
Compressor Gate
l
Limiter
l
Limiter Gate
When the DYN button is selected the INPUT DISPLAY on any channel with a Dynamics Processor active will automatically switch to
showing Gain Reduction and/or Gate Open/Close activity.
Gate
A Gate (also referred to as a Noise Gate) is used to control unwanted background noise. This is achieved by setting a Threshold
level where loud signals will be able to pass through (Gate Open) and softer ones will not (Gate closed).
A typical example might be a low level noise coming from an air conditioning unit in the studio that is picked up by the presenterís
microphone. When the presenter is talking into the microphone his voice is sufficiently loud to ëmaskí the sound of the air
conditioning unit, but when he stops speaking the unwanted sound can be clearly heard.
A Gate could be set-up to only remove the low-level noise coming from the air conditioning unit i.e. when the presenter stops
speaking the Gate closes and no signal is passed.
The following parameters are available for adjustment.
Threshold
As mentioned above the Threshold is the point at which the Gate closes which results in the signals being muted. Signals above
the Threshold level pass through unaffected. Signals below the Threshold level will not be able to pass through the Gate.
Attack
The Attack time determines how quickly the Gate opens when a signal exceeds the Threshold level.
Hold
The Hold time determines how long the Gate stays open after the input signal has dropped back below the Threshold level.
Decay
The Decay time determines how quickly the Gate will close after the Hold time has expired.
Depth
The Depth control determines to what level the Gate closes. A level of 0dB will mean that the Gate does not close at all and all
signals pass through. A level of -80dB will mean that the Gate closes completely whenever the signal level drops below the
Threshold setting. This control can be used to prevent the Gate’s action being too abrupt and noticable.