Limiter - DriveRack 4800/4820

  Limiter - Signal processor used to Limit the dynamic range of the signal passing through it. This is normally done through the use of a VCA (Voltage Controlled Amplifier), whose gain is a function of a control voltage applied to it.

All changes are made in real time.  If you wish to keep changes made, close the control panel with the "X" in the upper right hand corner.  If you do not want to keep the changes, click the "revert" button and all values will return to their original value (when the panel was opened).  Once you have closed the panel, you cannot undo or revert changes.

On/Off button - Turns the Limiter module on and off; when in the Off position, the signal path bypasses this algorithm.

OverEasy fader - OverEasy is a soft-knee smoothing that occurs in the transition about the Limiter threshold. The higher the OverEasy number the greater the smoothing.

Threshold fader - The threshold is the signal level at which the unit starts to reduce the gain. If the threshold is set to -10 dBFS, then any signal larger than -10 dBFS will be Limited while any signal lower than -10dBFS is left at the original level. Limiting is used differently than compression, in that it typically is used to provide system protection. No signal level above the threshold will be passed without regard to increase above the threshold.

PeakStopPlus® On/Off - The first stage of PeakStopPlus is the Instantaneous Transient Clamp™ which clamps the signal with a soft logarithmic clamp function. This logarithmic function ensures that the signal will not exceed the level set by the PeakStopPlus Overshoot control by more than the Overshoot amount, and that it will not introduce harsh artifacts. The second stage is a unique program limiter featuring Intelligent Predictive Limiting™. Its function is to monitor the input signal and intelligently predict the amount of gain reduction needed to keep the output signal below the ceiling set by the Instantaneous Transient Clamp™.

Overshoot 1-6 - This parameter sets the amount of overshoot for the Instantaneous Transient Clamp™.

Auto button on/off - When Auto mode is on, this insert dynamically sets the Attack, Hold, and Release times for the signal. The Auto mode constantly adjusts these parameters in real time for optimum performance from the unit. You will find that for most applications, not only is using the Auto mode faster and easier, but by letting the unit constantly tweak these parameters the outcome will sound better.

Attack fader - Attack is how fast the limiter starts to reduce the gain after the signal crosses the threshold. Fast attack is useful when dealing with very fast transients. The attack control is not active when in Auto mode.

Hold fader - Hold is the amount of time the limiter remains in gain reduction after the signal has dropped below the threshold. A longer hold time is useful in smoothing out the sound when limiting several fast peaks that are fairly close together in time. The hold control is not active while in Auto mode.

Release fader - Release is how fast the signal comes out of compression. The Release is in dB per second. For example, if Release is set to 5 dB /sec, and the signal is at 10dB of gain reduction, the Release time is 2 seconds. Having a Release time that is either too fast or too slow for the signal can result in audible artifacts called pumping or breathing. This can cause volume drops in your signal that may not be desired. The Release control is not active while in Auto mode.

Configuration - To configure this section, select Tools from the Menu Bar. Then select Configuration Wizard.

Click on the Output DSP Inserts link.