FYI - here are some results using the various
B.Britten: Simple Symphony tracks at
http://www.2l.no/hires/index.html - I've not played with any WASAPI settings at all.
Surround 5.1 DTS 24BIT/44.1kHz - outputs the bit steam to the AV Receiver and plays just fine
Surround 5.1 FLAC 24BIT/48kHz - plays but with the digital crackle (all quiet when paused)
Stereo FLAC 24BIT/48kHz - plays but with the digital crackle (all quiet when paused)
Surround 5.1 FLAC 24BIT/96kHz - would not play - MC13 error message "Playback could not be stated on the output "Windows Audio Session API (WASAPI) using the format 96000Hz, 24bits, 6ch"
Stereo FLAC 24BIT/96kHz - plays but with the digital crackle (all quiet when paused)
Stereo FLAC 24BIT/192kHz - plays but with the digital crackle (all quiet when paused)
Surround 5.1 WAV 24BIT/48kHz - will not play - messages in MC13 is "analyse files --> there is nothing to play"
Stereo WAV 24BIT/96kHz - will not play - messages in MC13 is "analyse files --> there is nothing to play"