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Five principles behind a revolutionary codec

Auro3D
Written by Warren Kelly | Published in
First published: 02-09-2011
Version
Download40
Size1.01 MB
Create DateJuly 9, 2014
Last UpdatedMay 26, 2015

With the recent advent of high-quality 3D video in digital cinema and on Blu-ray Discs, several trends have started to emerge in the related audio fields.

The main five trends are:

1. The wish to go back to uncompressed digital audio (linear PCM)

2. The use of high resolution digital audio formats at higher sample rates (eg 96 kHz) and greater bit-depths (e.g. 24-bit)

3. The need for a new, more immersive playback format with true 3D spatial audio capabilities

4. The need for a new, backwards-compatible delivery format that allows the simultaneous distribution of multiple playback formats in one, single stream

5. The need for a decoder with ultra-low latency to guarantee lipsync and avoid delays between audio and video streams of a live broadcast programme

This paper will focus on the principles behind the new, revolutionary Auro-3D Octopus codec, co-developed with Van den Berghe R&D, which enables the new 'aurophonic' playback format and gives a solution for the trend towards uncompressed, high-resolution digital audio while remaining within the limitations set by current standards like HDMI and DCI.


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Principles behind a Revolutionary Codec

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