Error 0x8878113C

Value: -2005397188 | 0x8878113C | 2289570108

What does it mean ?

DMUS_E_WAVEFORMATNOTSUPPORTED  
An invalid buffer format was handed to the synth sink.
Value: 4412 | 0x113C | 0b0001000100111100

Where does it come from ?

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

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