HDR Tab: Actor-Mixer and Interactive Music Objects

In the HDR tab you can define HDR properties for an object to further define the behavior of the sound in the HDR system.

The HDR system performs an offline analysis on all sounds and extracts their envelope. This information is used to drive the HDR dynamics, along with bus and sound HDR settings.

Refer to Understanding HDR for more details.


Interface Element



The name of the object.

Displays the object's color. Clicking the icon opens the color selector.

Select a color to apply it to the object. When you choose a color for an object, a palette icon appears on the selected square, as well as a yellow triangle in the lower-right corner, as shown.

To inherit the parent object's color, select the square at the far left of the color selector.

Controls the Mute and Solo states for the object and shows the implicit mute and solo states for the object.

Muting an object silences this object for the current monitoring session. Soloing an object silences all the other objects in the project except this one.

A bold M or S indicates that the Mute or Solo state has been explicitly set for the object. A non-bold M or S with faded color indicates that the object's Mute or Solo state was implicitly set from another object's state.

Muting an object implicitly mutes the descendant objects.

Soloing an object implicitly mutes the sibling objects and implicitly solos the descendant and ancestor objects.


Hold the Ctrl key while clicking a solo button to exclusively solo the object for which the solo button is associated.


Mute and Solo are designed to be used for monitoring purposes only and are not persisted in the project or stored in the SoundBanks.


Determines whether the element is included in the SoundBanks when they are generated. When selected, the element is included. When unselected, the element is not included.

To optimize your sound design for each platform, you might want to exclude certain elements on certain platforms. By default, this check box applies across all platforms. Use the Link indicator to the left of the check box to unlink the element. Then you can customize the state of the check box per platform.

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

Default value: true

Indicates the number of elements in your project that contain direct references to the object. The icon is displayed in orange when references to the object exist, and in gray when no references exist.

Selecting the button opens the Reference View with the object's name in the References to: field.


Any additional information about the object properties.

Sets the display of the Property Editor's selected tabs. By default, there is one panel that displays a single selected tab. You can, however, click a splitter button to display two panels, divided horizontally or vertically. The selected option is highlighted with a background color.

You cannot open the same tab in both panels. If you try to open the same tab in both panels, the first panel automatically opens a different tab.

[Tip]Shortcuts for selecting tabs

  • Press Ctrl and the number that corresponds to the number of the Property Editor tab you want to view. For example, Ctrl+4 opens the RTPC tab if it is the fourth visible tab.


Interface Element


Envelope Tracking

Override parent

Determines whether the HDR envelope tracking will be inherited from the parent or defined at the current level in the hierarchy. When this option is not selected, the envelope tracking controls are unavailable.

If the object is a top-level object, this option is unavailable.

Default value: false

Enable Envelope

When enabled, the HDR window follows the analyzed envelope of the loudest sound (if it is above threshold). It is also used to determine if the sound is within its active range (see the Active Range property below).

When it is disabled, the envelope of the sound is not considered for computing the window top.

Refer to Working with Amplitude Envelopes for more details.

Default value: false

HDR Envelope Sensitivity

Defines the Envelope Sensitivity used in the algorithm to reduce the number of points in the Envelope.

  • One point is always kept along the points at the two extremities.

  • At 0, no other points are kept.

  • At 100, all points are kept.

The Sensitivity is used until the Envelope is edited by hand.

Refer to Envelope Sensitivity and Manual Editing for more details.

Default value: 20

Range: 0 to 100

Units: %

Active Range

Defines for each voice the range in decibels, from the sound’s peak, for which the HDR dynamics are active. The active range defines the region of interest in a sound, based on its analyzed envelope: it is “active” as long as the current envelope level is above “peak level” minus “active level”. When it is not active, the HDR dynamics do not consider the content of the sound. If the active range is 0, the sound has no influence on the position of the HDR window.

Refer to Region of Interest: Active Range for more details.

Default value: 12

Range: 0 to 96

Units: dB

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