Dolby TrueHD and DTS-HD Master Audio are two major lossless audio compression technology developed by Dolby Laboratories, Inc. and DTS, Inc.

1. What is Dolby TrueHD and DTS-HD Master Audio?

Dolby Laboratories, Inc. (often shortened to Dolby Labs) is an American company founded by American Ray Dolby (1933-2013) in the United Kingdom in 1965, specializing in audio noise reduction and audio encoding/compression. Dolby licenses its technologies to consumer electronics manufacturers.

dolby and dts

DTS (Dedicated to Sound), Inc. is an American company founded by Terry Beard in 1993, specializing in digital surround sound formats used for both commercial/theatrical and consumer grade applications. It was known as The Digital Experience until 1995. DTS licenses its technologies to consumer electronics manufacturers. In December 2016, DTS was acquired by Tessera, now called Xperi.

dolby and dts

Both of Dolby and DTS have very good sound effects, but which one is better? Let’s take a look closer look:

Name Dolby TrueHD DTS-HD Master Audio
Features lossless multi-channel audio codec lossless multi-channel audio codec
Usage mostly used in home-entertainment equipment commonly used for surround-sound movie soundtracks on Blu-ray Disc
Channels supported up to 8 discrete audio channels up to 8/32 discrete audio channels
Sample frequency 48/96kHz 48/96/192kHz
Coding PCM PCM
Sample depth 16/24bit 16/24bit
Highest bit rates 18Mbps 24.5Mbps
Range of HDMI Rev1.3 Rev1.3
Range of HDMI Yes Yes
Diverse 7.1 program No Yes
Smart dynamic sound Yes No
Core technology MLP Lossless High Resolution Audio and DTS Digital Surround

From technical facts listed above, it is difficult to separate the two in the sound experience, because both are committed to being mainstream High-definition applications provide lossless master-band audio effects.

But from the usage point of view, both of them are differentiated. Market differentiation will be their future trend. DTS-HD, same as the original DVD era, will be favored by audiophiles; and Dolby TrueHD, with home-based features, is likely to extend its applications, such as high-definition TV signals.

2.Can Dolby and DTS apply to Blu-ray Disk?

Yes. In the Blu-ray Disc specification, Dolby TrueHD is an optional codec. Dolby TrueHD audiotracks may carry up to 8 discrete audio channels (7.1 surround) and 20 objects of 24-bit audio at 96 kHz or up to 6 channels (5.1 surround) at 192 kHz. The maximum encoded bitrate is 18 Mbit/s. Since Dolby TrueHD is an optional codec, a companion Dolby Digital bitstream (2.0 192Kbps or 5.1 448Kbps/640Kbps) must accompany the Dolby TrueHD bitstream on Blu-ray discs. Blu-ray Disc players consider this combination of two audio bitstreams as a single logical audio track, and a Blu-ray Disc player will automatically select the Dolby Digital or Dolby TrueHD bitstream depending on its decoding and/or audio bitstream output capabilities.

Dolby TrueHD sees its most popular usage as a high definition audio codec for Blu-ray Disc. Some early Blu-ray players did not support Dolby TrueHD coding, and in some cases, the player would resample it as standard Dolby Digital. All current Blu-ray players support Dolby TrueHD, along with the ability to upmix the source to a higher resolution format (Bitstream or LPCM), or downmix to a lower channel format depending on the player or equipment’s requirements. However, by late 2009 and early 2010, Dolby TrueHD had been steadily losing the lossless audio market share to rival DTS-HD Master Audio. This trend is inverse in case of 3D audio with Dolby Atmos encoded Dolby TrueHD releases outnumbering competing codecs.

3. How to convert Blu-ray to MKV with zero sound quality loss?

There are many Blu-ray to MKV converters available. But here I want to recommend Leawo Blu-ray to MKV Converter. It offers 1:1 quality lossless Blu-ray to MKV conversion and DVD to MKV conversion which can retain the Dolby True HD audio effect, regardless of disc protection and region restriction.

As the best Blu-ray to MKV converter software, Leawo Blu-ray to MKV Converter tops competitors in the support of multiple subtitles and audio tracks output as well. This Blu-ray to MKV software allows people to freely select subtitles and audio tracks from original Blu-ray/DVD content for output. People could fully retain all original movie subtitles and audio tracks for output. What’s more, Leawo Blu-ray to MKV Converter enables people to preview subtitle and audio track via the internal player before determining which subtitle and audio track to retain.

With advanced disc reading and decrypting technology, Leawo Blu-ray to MKV Converter could fast read, decrypt and load Blu-ray/DVD content for converting. It is 6X faster than similar Blu-ray to MKV converter software apps in loading and converting Blu-ray/DVD content. It offers 3 different content loading modes to deliver great convenience for people in loading and converting Blu-ray/DVD content. People could freely select any content in source Blu-ray/DVD file to deduce the loading and converting time. What’s more, once Blu-ray/DVD content is loaded, it will get buffer memory, which shortens the loading time when it gets loaded again.

Leawo Blu-ray to MKV Converter offers several user friendly but easy to use bonus features to make Blu-ray to MKV conversion faster and easier.


Here is a step by step guide on how to use Leawo Blu-ray to MKV Converter:

Step 1: Download, install and open Leawo Blu-ray to MKV Converter

dolby and dts

Step 2: Settings.

Click “Setting” button right next to the yellow key button to pop up detailed setting panel. You can freely choose a language under “General” button; choose whether or not to enable DVD navigator under “Conversion” button; set CPU core under “Performance” button; set internet proxy in detail and the frequency of automatically checking program update under “Connection” button and you can set the location of external subtitle, default encoding, screenshot image format, and the output directory for saving screenshot images under “Others” button.

dolby and dts

Step 3: Insert files

Click Add Blu-ray/DVD on the up left corner to pop up three inserting options: Add from CD-ROM, Add from folder or Add iso file. Except for all the three ways mentioned, you can also directly drag files into it.

Step 4: Select files and start converting.

That’s all. I hope this guide will help you know Dolby and DTS better and be beneficial to audiophiles.