DTS-HD Master Audio

What Does DTS-HD Master Audio Mean?

DTS-HD Master Audio is a lossy and lossless codec created by
HTS for use in Blu-ray movie soundtracks. It is one of the optional formats
alongside Dolby TrueHD. DTS-HD is the most common audio format for Blu-ray discs.
It supports 5.1, 6.1 and 7.1 channel surround sound.


DTS-HD Master Audio was originally known as DTS++.

Techopedia Explains DTS-HD Master Audio

DTS-HD is the most common audio codec used for Blu-ray movies. When played on equipment using DTS Master Audio, it is a bit-for-bit lossless format. Otherwise, it is a lossy codec, where some information from a movie soundtrack is discarded. DTS-HD supports variable bit rates of up to 24.5 megabits per second in Blu-ray and 18 Mb per second on HD-DVD. The audio is transmitted over RCA or HDMI cables.

DTS-HD Master Audio is popular because it offers high sound quality with smaller file sizes.


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Margaret Rouse is an award-winning technical writer and teacher known for her ability to explain complex technical subjects to a non-technical, business audience. Over the past twenty years her explanations have appeared on TechTarget websites and she's been cited as an authority in articles by the New York Times, Time Magazine, USA Today, ZDNet, PC Magazine and Discovery Magazine.Margaret's idea of a fun day is helping IT and business professionals learn to speak each other’s highly specialized languages. If you have a suggestion for a new definition or how to improve a technical explanation, please email Margaret or contact her…