The Unreal Audio system:
- Support for the latest major audio compression scheme for all platforms.
- Transparent to the user.
- SIMD optimized compression and decompression of improved quality Ogg Vorbis on the PC.
- 3D sound positioning, spatialization and attenuation.
- Advanced attenuation features, such as attenuate vs. plane and attenuate with a low pass filter
- Ambient Zones to emulate occlusion
- Cross-platform DSP effects.
- I3DL2 reverb on all platforms.
- Per source low pass filter for attenuation or other effects.
- EQ effects.
- Multi-channel playback (4.0, 5.1).
- Channel playback to many speaker configurations (e.g. 4.0, 5.1, 7.1, 5.0)
- Sound Modes for gameplay control of the soundscape
- Batch control of pitch, volume, attenuation, Sound Actors, Sound Groups, compression and other parameters.
- Seamless looping of sounds on all platforms.
- Extensive debugging tools monitor resource usage.
- Visual Sound Cue Editor in UnrealEd:
- Gives sound designers complete control over sounds, sound levels, sequencing, looping, filtering, modulation, pitch shift, and randomization.
- Sounds parameters are separated from code to an extent that sound designers can control all sounds associated with gameplay, cinematics and animation sequences.
- Per map intelligent streaming of audio resources.
- Multiple Sound Actor types for flexibility of implementation.
- Visual Sound Class Editor in UnrealEd
