Intel Thread Building Blocks Engine/Binaries/ThirdParty/Phonon/Win64/tbbmalloc.dll and Engine/Binaries/ThirdParty/Phonon/tbb.dll This allows Steam Audio to perform an optimized ray tracing algorithm which determines the acoustic response of a given space.This is a dll which is linked against when using SteamAudio http://www.apache.org/licenses/LICENSE-2.0.txt Git P4