Defined in carb/audio/IAudioPlayback.h

constexpr OutputFlags carb::audio::fOutputFlagAllowNoStreamers = 0x00000004

flag to indicate that an empty streamer table is allowed.

This can be used to provide a way to set a null output in cases where audio output is not wanted, but audio engine behavior, such as voice callbacks, are still desired. This is also useful for testing, since you won’t be dependent on the test systems having a physical audio device.