SL_I3DL2_ENVIRONMENT_PRESET_CARPETEDHALLWAY

Undocumented in source but is binding to C. You might be able to learn more by searching the web for its name.
extern (C)
enum SL_I3DL2_ENVIRONMENT_PRESET_CARPETEDHALLWAY = SLEnvironmentalReverbSettings(-1000, -4000, 300, 100, -1831, 2, -1630, 30, 1000, 1000);

Meta