while there may be other, more esoteric options here, these are the only ones with which I have personal experience. If you have a hardware card or external device that handles discrete audio channels/encoded AAC multichannel content, then your can convert the DTS to AAC multichannel audio which your system will then play as stereo when not connected to/output via a multichannel capable hardware. TrueHD has a few small dropouts now and again, I am pretty sure this is not a CPU useage (down to less than 30 running the CPU 2Ghz) thing but an ffdshow thing as TMT3 bitstreams from BDs with no issue. If all you want to do is play your current files with change and have a DTS decoder available to your playback workflow, then all you have to do is use the VLC media player and pass the DTS audio to your connected decoder/amplifier for decoding and playback through multiple speakers. MediaPortal setup using MPC-HC (v1540) as external player and ffdshow (v3212) bitstreams True-HD, DD and DTS.
Thus, devices that can't handle multichannel sourround sound can use the stereo track as is or decode the active PL2 content if a decoder is available or pass the AC3 (or DTS) audio through to a compatible decoder. I normally create a "universal" file with one video track, an AAC Pro Logic stereo audio mixed-down track and an AC3 DD5.1 audio track.
#Directshow dts decoder 8193 mac os
How do you plan to view the files? Perian is supposed to have DTS support but Mac OS core audio routines normally output audio as stereo unless you have hardware or are using a media app that can pass the source audio directly to a DTS decoder. I can see the movie but no sound i need quick time audio dts 8193