DTS-HD Master Audio
is a lossless
created by Digital Theater System
. It was previously known as DTS++
. It is an extension of DTS
which, when played back on devices which do not support the Master Audio or High Resolution
extension, degrades to a "core" track which is lossy
. DTS-HD Master Audio is an optional audio format for Blu-ray Disc
format exclusively. DTS-HD Master Audio has been steadily becoming the standard for Blu-ray lossless audio format.
One goal of the DTS-HD Master Audio format was to allow a bit-to-bit representation of the original movie's studio master soundtrack. To accomplish this, DTS-HD MA supports variable bit rates up to 24.5 Mbit/s on a Blu-ray Disc and up to 18.0 Mbit/s for HD DVD. The format supports a maximum of 192 kHz sampling frequency and 24-bit depth samples in 2 channels stereo mode, and 96 kHz/24bit resolution in multichannel mode with up to 8 channels.
DTS-HD is capable of virtually any number of discrete channels (over 2000) but is limited by storage media.
According to DTS-HD White Paper, the DTS-HD Master Audio contains 2 data streams: the original DTS core stream and the additional "residual" stream which contains the "difference" between the original signal and the lossy compression DTS core stream. The audio signal is split into two paths at the input to... Read More