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The Unreal Audio system features:

  • 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.