I am trying to play DTS music files on my windows 10 laptop with Foobar via a usb 7.1 sound card and a Toslink connection. I am getting music but the Denon AVR-1910 only recognised the audio as PCM and plays it in stereo! Most strange. Anyone have any ideas what the problem is. I have tried removing the DTS decoder module from foobar and all I get then is white noise and no music! I’m at a loss!