|Create Date||July 9, 2014|
|Last Updated||May 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.
|Principles behind a Revolutionary Codec|