videoconverter: How to Convert DTS MKV to MKV AC3?

LG and Samsung smart TV support playing almost all Videos including MKV, MP4, and AVI. As for MKV support, in most cases, MKV can be played on LG and Samsung smart TV. So, it will be strange if you found your MKV files cannot be played on LG or Samsung smart TV. This is probably because your MKV files are with DTS audio. LG and Samsung smart TV have bad compatibility with DTS audios. In order to play MKV DTS on Samsung/LG Smart TV, we will need to convert MKV DTS to MKV AC3 or convert MKV DTS to AC3 5.1 or Convert MKV DTS to AAC.
This article introduces a direct way to transcode MKV with DTS to MKV with AC3 to solve:
HD TV like LG, Samsung smart TV and WD TV cannot play MKV files with DTS sound problem;
VLC on Windows or Mac won't play MKV DTS audio;
Any other players cannot play MKV files with DTS audio problem.
If you aim to only convert audio DTS to AC3, DTS to AC3 5.1 or DTS to AAC instead of convert video MKV to MKV, in the following detailed steps, directly go to Convert audio only DTS to AC3/AAC.

Step 1 Free download Bigasoft Total Video Converter and Launch it.

Free download the outstanding MKV DTS to MKV AC3 Converter - Bigasoft Total Video Converter (Windows Version, Mac Version), install and launch it.
Bigasoft Total Video Converter works as outstanding MKV DTS to MKV AC3 Converter, DTS to AC3 Converter and DTS to AAC Converter. It can fast and easily convert MKV DTS to MKV AC3, convert MKV DTS to MKV AC 5.1 or convert DTS MKV to AAC MKV with high quality. In addition, it can also convert MKV, DTS MKV to AVI, MP4, WMV, WebM, H.264, MOV, VOB, DV and more and convert MKV, DTS MKV to audio MP3, AC3, AAC, WMA, M4A as well as convert DTS audio to MP3, AC3, AAC, WMA, M4A, RA and more.

Step 2 Add DTS MKV files

Click the button of "Add File" in the main interface to load DTS MKV files.
Converting MKV DTS to MKV AC3 Step-by-step Guide

Step 3 Set output profile and settings as MKV AC3 or MKV AAC

Click the drop-down list on the right side of the "Profile" to select Matroska Video (*.mkv) from "General Video" Category.
Click "Setting..." to open the "Advanced Window" and move to "Advanced" tab. Then go to "Audio" column, click "Audio Codec" drop-down to choose "ac3" or "libfaac" as the audio codec.
To convert MKV DTS to MKV AC3 with 5.1 channels, click "Channels" drop-down to choose 5.1 as the channel.
To convert audio only DTS to AC3/AAC, in the general audio category, choose AC3 - Dollby Digital AC-3(*.ac3) as the profile.
Click "Setting..." to open the "Advanced Window" and move to "Advanced" tab. Then go to "Audio" column, click "Channels" drop-down to to choose 5.1 as the channel.
Convert MKV DTS to MKV AC3 5.1