[bivab]

There is no transcoding to PCM. The untouched audio is simply unpacked into separate channels. This would still be considered lossless unless you are doing some type of mixing with this data. LAV Audio and audio renderers can alter PCM tracks. But this can be bypassed with correct configuration (simply ignore the mixing tab in LAV Audio and don't use ReClock's media speed correction and choose WASAPI Exclusive). Then it is lossless.

 Alright, good to know. So it's more decoding/unzipping rather than transcoding?

I tried disabling the Microsoft DTV-DVD decoder using this tutorial, hoping DSPlayer would fallback to LAV Audio, but this resulted in NO audio being played. The MS decoder is no longer present as a filter, but LAV audio neither. I guess I'll have to wait for a DSPlayer update, hoping it's not my machine that's in the wrong here.  

 LAV Audio might use that decoder. I don't know. It seems like a strange thing for aracnoz to miss in testing. 

 Okay, so I hooked up an entirely different machine (with an AMD APU instead of Intel + GTX 970) with a fresh Windows 10 64-bit installation. I only copied over my library and GUI settings and changed some basic settings for DSPlayer. When I start playing a video with Dolby Digital (with bitstreaming enabled) Kodi will now crash. If I play a file with DTS it will play correctly (and use LAV Audio). When I disabled bitstreaming Dolby Digital and let LAV decode the audio for me, Kodi does not crash and will play the file (using LAV Audio filter).

I don't know, but it feels like something's not entirely right here.

I'm happy to provide whatever info if someone feels up for a challenge .