[wesk05]

Here we go, some FFTs done on the PCM output of Apple TV 4K (Infuse and MrMC), LE Kodi 18 Beta (Intel Haswell) and nVIDIA Shield (Kodi 18 Beta). The test tone was a simple logarithmic sine sweep (20Hz - 20kHz, 24-bit 48kHz). The generated tone was encoded to Dolby TrueHD (5.1) and DTS-HD Master Audio (5.1). As you can see from the FFTs the decoded PCM outputs from both Dolby and DTS tracks on all 3 devices reproduce the same spectrum as the original test tone. So, you could say that they are similar perceptually. I did check the bit exactness and interestingly no output was bit perfect. I do have to mention that nVIDIA Shield only outputs 16-bit 48kHz. 24-bit output seem to be supported only for sampling rates above 48kHz.

Apple TV 4K

There are 5 FTTs - original PCM, Dolby and DTS decoded outputs from Infuse and MrMC

LE Kodi 18 Beta (Intel Haswell)

3 FFTs - original PCM, Decoded Dolby and DTS outputs

nVIDIA Shield

3 FFTs - original PCM, Decoded Dolby and DTS outputs