Error 0x80045032

Value: -2147200974 | 0x80045032 | 2147766322

What does it mean ?

SPERR_HIGH_LOW_CONFIDENCE  
The result does not contain any audio, nor does the portion of the element chain of the result contain any audio. Returned from ISpResult::GetAudio and ISpResult::SpeakAudio.
Value: 20530 | 0x5032 | 0b0101000000110010

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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