DTS-HD High Resolution Audio
DTS-HD High Resolution Audio is a lossy DTS-HD format that extends the conventional DTS presentation.
DTS-HD High Resolution Audio is the lossy enhanced DTS-HD presentation. It is different from lossless DTS-HD Master Audio. Consumer descriptions include up to 7.1 channels and 96 kHz capability, providing more presentation scope than conventional core-only playback.
The important word “lossy” remains compatible with improvements over a core.
Additional information can reduce an error without eliminating it
The DTS extension family includes XBR, which can encode quantized residual information describing what a core representation did not retain. Its decoder adds the reconstructed residual to the corresponding core representation.
A numerical illustration makes the distinction clear:
| Step | Illustrative value |
|---|---|
| Source component | +0.83 |
| Core reconstruction | +0.75 |
| Difference to be corrected | +0.08 |
| Quantized extension correction | +0.05 |
| Enhanced reconstruction | +0.80 |
The enhancement moved the result closer to +0.83 but did not restore it exactly. These values illustrate quantized correction; they are not a DTS packet example or a complete specification of every High Resolution stream's extension combination.
Lossless correction must preserve the necessary difference exactly. That is a different reconstruction promise, developed in DTS-HD Master Audio.
Core-only decoding and the enhanced presentation
A compatible core-only route uses the existing lossy core and misses the supported enhanced result. A full High Resolution decoder uses the appropriate extensions. Either decoder can then output ordinary PCM.
A receiver's PCM label consequently identifies where decoding finished, not which DTS presentation was reconstructed. To distinguish the routes, identify the player's selected decoder/result and output layout.
High-rate or 24-bit descriptions concern supported sample representation. They do not make the quantized correction in a lossy coding process reversible. The useful distinction is the reconstructed presentation and its codec profile, rather than treating every “DTS-HD” display abbreviation as Master Audio.