Table of Contents

Effect Editor - McDSP ML1 Mastering Limiter Effect Plug-in

The Effect Editor displays all the properties associated with the McDSP ML1 Mastering Limiter plug-in.

For a general overview of the McDSP ML1 Mastering Limiter plug-in, refer to McDSP ML1 Mastering Limiter. For more detailed information, refer to the McDSP website. Note that the Wwise implementation of the McDSP ML1 Mastering effect might differ slightly from the one discussed on their website.

[Note] Note

The algorithm used in Audiokinetic's version of the McDSP ML1 Mastering Limiter is slightly different from the ProTools implementation. The changes were made to accommodate certain conditions where overloaded input signals (up to +12 dB) could not be handled without producing significant clipping distortion in the output.

Interface Element



Determines whether the element is included or excluded. When selected, the element is included. When unselected, the element is not included. By default, this applies across all platforms. Use the Link indicator (to the left of the check box) to determine or to set platform-specific customizations.

When this option is unselected, the property and behavior options in the Property Editor become unavailable.

Default value: false


The name of the Effect instance.

Effect instances are a group of effect property settings. They can be one of two types: custom instances or ShareSets. Custom instances can be used by only one object, whereas ShareSets can be shared across several objects.


The type of effect.

Shared by (Used by)

A list of objects that currently subscribe to the selected ShareSet.

This field is called “Used by” when editing a custom instance of the Effect.

Opens a search field where standard alphanumeric entries filter out unmatching elements from the view. Learn more in Using Tables.

Click the Close icon to the left of the search icon to close the search field and remove the filter.

[Note] Note

The searches do not include elements in collapsed nodes of the List View, Query Editor, MIDI Keymap Editor, and Reference View.

Returns the Effect property settings to their default values.

This option is only available when editing a custom instance of the Effect.


Additional information about the Effect.


Specifies the maximum output signal level.

Default value: 0
Slider range: -36 to 0
Units: dB


The signal level at which the limiter begins to detect input signal peaks. The difference between the Ceiling and the Threshold is the maximum makeup gain of the limiter.

Default value: 0
Slider range: -36 to 0
Units: dB


Specifies the limiting action transition, where 0 produces a normal, hard knee, and 100 produces a soft knee.

The Knee control modifies the gain structure of the limiter in an effort to reduce the distortion while maximizing output levels. Increasing the Knee control will add a soft shape to the limiting response curve.

Default value: 0
Slider range: 0 to 100
Units: Percent


The rate at which the limiter recovers from reducing a signal peak. Shorter release times increase overall output signal levels.

Default value: 10
Slider range: 1 to 5,000
Units: Milliseconds


The type of secondary detection used to create various limiting styles to suit a variety of input signals and applications. You have the following options:

  • Clean - The most transparent limiter mode. Signal levels are adjusted with the least amount of measurable distortion.

  • Soft - Sightly louder than the Clean mode, however, also very transparent.

  • Smart - Intelligent limiting minimizing signal distortion while increasing signal levels more than the Soft mode.

  • Dynamic - Louder than the Smart mode, and adding a hint of compression pumping under certain conditions.

  • Loud - As loud as possible while keeping signal distortion minimal.

  • Crush - Louder than the Loud mode, with some signal distortion.


(VU Meters)

A series of meters that display the different levels of the audio signal, including input levels, output levels, and gain reduction levels applied to signal peaks.

To enable the VU meters, you must click the Start Capture button in the Wwise toolbar.

The VU meters only work when the ML1 effect has been applied to a bus in the Master-Mixer Hierarchy. In the case of a ShareSet, the bus must be selected in the 'Shared by' list of the Effect Editor.

[Note] Note

The Left and Right channels in the meter are only a true representation when the Effect is used on a stereo bus. For all other configurations, the Right channel is not used and the peak is represented on the Left channel.


Displays the level of the incoming audio signal.


Displays the amount of gain reduction applied to the signal peaks.


Displays the level of the audio output.