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A blend container is a group of one or more sounds, motion objects, and/or containers that are played back simultaneously. The objects within the blend container can be grouped into blend tracks where properties are mapped to game parameter values using RTPCs. Crossfades can also be applied between objects within a blend track based on the value of a game parameter. The blend container is ideal for recreating the many sounds a car engine makes as it speeds up, slows down, and changes gear.

Each blend container has a set of properties and behaviors that can be used to define how the object is played in game. Most of these properties and behaviors are located in the Property Editor. The editing of blend tracks, however, is done in the Blend Track Editor. When you load a container in the Property Editor, the Contents Editor automatically displays a list of all the objects found within the container. The Contents Editor also contains a series of controls that allow you to assign objects to specific blend tracks.

The descriptions for each of the blend container property and behavior options can be found in one of the following sections: