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The Unreal Audio system features:
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- 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.
- 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, 6.1 and 7.1).
- Batch control of pitch and volume using sound groups.
- Seamless looping of sounds on all platforms.
- Extensive debugging tools monitor resource usage.
- Visual Sound Tool 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.

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