I recently added Steam Audio (beta 17) to my FMOD project (1.10.15) and it works fine in the Editor (UE 4.22).
I added the plugin to fmod’s ue4 project settings (phonon_fmod) and also added the libs (phonon, phonon_fmod) + plugins.txt to the platform folders of the engine which is used for building.
I tried different variations in the plugins.txt:
phonon (<— I tried with and without, not sure if this lib needs to be added)
(for linux I had to compile the plugin for linux and prefix the libs with ‘lib’ in plugins.txt)
When starting the game (Win 10) this is logged; there is no sound output from FMOD:
[2019.08.25-10.26.27:335][ 0]LogFMOD: Warning: f:\jk\workspace\1.10_UE4.22_Win64\studio_api\src\fmod_effect.cpp(189) - Missing DSP plugin 'Steam Audio Spatializer' [2019.08.25-10.26.27:340][ 0]LogFMOD: Error: f:\jk\workspace\1.10_UE4.22_Win64\studio_api\src\fmod_runtime_manager.cpp(1315) - DSP plugin returned an error, bank will not load properly. [2019.08.25-10.26.27:345][ 0]LogFMOD: Warning: Failed to bank: ../../../TO/Content/FMOD/Desktop/Gamesounds.bank (A requested output, dsp unit type or codec was not available.)
Is there any mistake on my side? Otherwise I guess Steam Audio is broken for ue4.
I could not test on fmod 2 since adding a Steam Audio Spatializer just freezes that fmod version.