Error 0x8004505B

Value: -2147200933 | 0x8004505B | 2147766363

What does it mean ?

SPERR_AUDIO_BUFFER_UNDERFLOW  
This will only be returned on input (read) streams when the real time audio device stops returning data for a long period of time.
Value: 20571 | 0x505B | 0b0101000001011011

Where does it come from ?

FACILITY_ITF  
COM/OLE Interface management. FACILITY_ITF is designated for user-defined error codes returned from interface methods
Value: 4 | 0x004 | 0b00000100

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