Frequently Asked Questions

  What is AstoundSound 3D RTI and how does it work?

AstoundSound 3D RTI is a digital filter set invoked with each plugin instance in real-time during gameplay; one plugin instance is needed for each positional 3D sound emitting object.

When the plugin is connected to a sound object, the sound’s audio signal is processed with a corresponding filter position based on the sound object’s 3D position in space. When the sound object changes position, a different filter position corresponding to the new position, is chosen automatically. The result is a highly accurate 360 degree spatial audio experience.

  If I assign a 3D RTI plugin for every sound object in my game, will that result in too much CPU processing?

AstoundSound 3D RTI automatically limits the number of sound objects being processed based on 2 criteria: distance or volume. For example, when the criteria is set to volume, the loudest N number of sounds are processed with the non processed sounds using normal stereo panning. The max number of sounds (N) can be set (see the 3D RTI for further information.)

  What does RTI stand for?

RTI is an acronym meaning Real-Time Interface.

  What are the differences between 3D RTI, Fold-down, and Expander?

> 3D RTI works on a per sound object bases, with a plugin instance needed for each positional 3D sound object.

> Fold-down is a virtual surround spatializer designed to process a multichannel (5.1 and beyond) output of the game so that the multichannel experience is preserved when only a stereo output is available.

> Expander is designed to process a stereo signal with an enhancement/widening algorithm to create a fuller stereo experience.