Join Date: Dec 2017
Mentioned: 17 Post(s)
Tagged: 0 Thread(s)
Quoted: 531 Post(s)
2.1 This is major, as the bane of all fixed-channel mapped systems was tight placement requirements that many deployments could (or would) not meet3- Scalable encapsulation of the elements needed for reproduction of the format
2.2 Again, this akin to fixed pixel resolution jpg images vs. Vector drawings that are scaled at rendering time to the actual resolution of the output devices
3.1 As deployed on BluRay via Dolby TrueHD it is a lossless encode/decode path for all elements, from base 5.1 channels + up-to 128 positional objects4- The playback device, or Atmos renderer, is set up to map out the actual in-room deployment of speakers, then uses that information to render the objects in real-time to whatever is present. Which is why you can play the same track on a Trinnov powered 17.4.8 system as on a 5.1.4 and still hear the intended 3D audio reproduction. Just that the Trinnov rig will resolve more detail with possibly cleaner transitions from overheads to base-level.
3.2 As deployed in streaming video services using DolbyDigital+ it uses lossy compression for the elements which reduces the required data rate but still delivers separation of base channels and objects to be dynamically rendered at playback.