Spatial Audio Utilities

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The Spatial Audio Utilities blueprints allows you to easily create spatialized audio ambiences and one-shots to bring movement and life to your audio.

  • Supported Platforms
  • Supported Engine Versions


The Ambienator Blueprint actor can help you easily create immersive audio ambiences. Just add your sounds to one of the different slots provided and they will be automatically randomized and moved around the player in stereo or surround.

The Vectorator Blueprint enables a variety of spatial movement types for your one-shot sound effects.



- Area Loops: These are for the core backdrop to your audio environment.

- Moving Loops: These produce looping sounds that circle or randomly move around the player.

- Player Oriented One-Shot Sounds: These allow you to randomly fire off your sounds within a randomized distance from the player.

- Circle One-shot Sounds: These will circle the player every time they are randomly triggered.

- Sweep One-Shots: These will sweep past the player’s head at randomly timed intervals.

- Random One-Shots: These will move randomly through 3D space at randomized times.


The whole system uses a global time frame to determine the frequency of your sounds playback. You can update this dynamically to change the density of sound events based on changes in the game.



This actor allows you to easily add spatial movement to your one shot triggered sound effects. They can orientate around the player or come from a specific source. The Vectorator has all of the same spatial movement options as the Ambienator, available through a simple drop down menu. It also has the additional functionality of being able to define at what point in a sound it should pass the player (useful for airplane sweep pasts for example), or you can construct groups of sounds that chain together start, movement, and end sounds (for mortars, bullet flybys etc).

Technical Details


The project has been updated to fix a bug introduced in 4.18 relating to the use of attenuation settings within individual sound slots.

Number of Blueprints: The Spatial Audio Utilities pack comprises two Blueprint actors, the Ambienator, and the Vectorator.

Supported Development Platforms: Windows / Mac

Supported Target Build Platforms: Windows / Mac

Documentation: Download a guide to using the Spatial Audio Utilities here:

Demonstration / Preview:

A demonstration level is included which illustrates some of the possibilities of the Ambienator and Vectorator utilities along with a 17 page tutorial booklet. 

Preview Video:

We've written a brief guide to setting up your project to use binaural (HRTF) panning with the spatial audio utilities, This is good for hearing the spatial movements when using headphones, and a must for VR projects. Download from here:



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