Error 0x8878113D

Value: -2005397187 | 0x8878113D | 2289570109

What does it mean ?

DMUS_E_SYNTHINACTIVE  
The operation cannot be carried out while the synthesizer is inactive.
Value: 4413 | 0x113D | 0b0001000100111101

Where does it come from ?

FACILITY_DIRECTMUSIC  
Direct Music (part of DirectX) - Audio
Value: 2168 | 0x878 | 0b100001111000

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