MKV audio DTS to AC3 - how?

[Malick]

I love HD DVDrips. Moust of them have AC3 and some have DTS. Its a long story but i need to know how to convert MKV media`s DTS audio to AC3 5.1 leaving video untoutched.

[Redmist]

Firstly, extract the audio using mkvextract.

Use Tranzcode to convert the DTS into 6 uncompressed mono wavs. I then use Belight to convert to AC3.

You need to create a text file with a .mux extension to load the 6 wavs....eg

Create a file called audio.mux in notepad and enter the following

Audio-FL.wav
Audio-C.wav
Audio-FR.wav
Audio-SL.wav
Audio-SR.wav
Audio-LFE.wav

Convert to AC3 and then mux the audio and video using mkvmerge (mkvtoolnix)

[tebasuna51]

To trans-code DTS to AC3 without intermediate wav files you can use also Foobar2000 or BeHappy.

All the three (Belight, Foobar, BeHappy) can use Aften like ac3 encoder, only differ in the method and decoder:

- BeLight need wav files then use Tranzcode like DTS decoder.

- Foobar need the appropriate decoder plugin: foo_input_dts.dll
and send the info to Aften without wav files.

- BeHappy need .Net Framework v2, AviSynth and the NicAudio.dll like decoder and send the info to Aften without wav files.

Edit: Also you can use Tranzcode to decode the DTS to WAV multichannel and encode to AC3 with AftenGUI.