Bink Audio Decoder/Encoder Build Instructions First, the necessary source files to pass to the compiler: Encoder binkace.c popmal.c varbits.c binka_ue_encode.cpp radfft.cpp ranged_log.cpp Decoder binkacd.cpp binka_ue_decode.cpp radfft.cpp If a PC platform: x86_cpu.c The other source files are support for the test app. Be sure to define __RADINSTATICLIB__ on the compiler line: -D__RADINSTATICLIB__ unless compiling a shared library, than use -D__RADINDLL__ The decoder needs -DWRAP_PUBLICS=UEBA in order to keep external symbols that might be shared with other RAD code to be unique and avoid linker issues. If a modern x86 console with AVX support, then -D__RADCONSOLE__ If it's an NDA platform then add -D__RAD_NDA_PLATFORM__=, where is the NDA platform label. The best way to find this is to look in the Engine\Platforms\<>\Source\ThirdParty\BinkAudio\Src directory and get the relevant part from the header filenames.