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Auro-3D - The Other Format: Discussion Thread


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#1 petetherock

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Posted 11 September 2014 - 11:28 AM

Just when we thought it was safe to enter the water...

 

Now we have Auro knocking on our doors...

 

Cheap cheap... only 16700 buckeroos...

 

http://www.audioholi.../auro-3d-auriga

 

AURO states that the main differences between them and Atmos are:

  • Atmos has two vertical layers, AURO-3D has three
  • AURO-3D has one top "voice of God" speaker placed directly overhead
  • Atmos speakers are placed much higher than AURO-3D speakers - AURO speakers are in line with existing 5/7.1 speakers but elevated allowing more precise vertical sounds
  • AURO-3D is based on uncompressed PCM, Atmos uses lossy AC-4*
  • AURO-3D is a mixing format as well as a native encoding format (Atmos is only the latter according to AURO)

*Editorial Note About Dolby Atmos and TrueHD

While Auro claims Dolby uses lossy AC-4 for Atmos, according to the Atmos White Paper, Dolby claims Atmos over Blu-ray can be rendered losslessly via TrueHD.  So we suspect the lossy AC-4 statement applies to streaming Atmos which we will confirm as these services become available.

 

AURO-3D Speaker Layers

While no receiver manufacturers have partnered with AURO as of yet, they have released their own receiver - the $16,700 Auriga. The AURO Auriga has four HDMI inputs and one output along with three coaxial and three optical digital inputs. Five pairs of RCA-style analog inputs round out the inputs. The Auriga sports 13 channels of amplification (at 200 watts per channel, 8 ohms, all channels driven according to AURO) with pre-outs for up to 16 different speakers. Right now it doesn't support 4K but will through a firmware update.

While the Auriga supports all the popular legacy high-def surround formats (DTS HD, Dolby TrueHD) as well as the expanded formats (DTS Neo:X, Dolby ProLogic IIz), it is the only one that supports AURO-3D. If there is no AURO-3D metadata, it will take whatever format is available (including PCM) and expand it to the existing speakers. The Auriga supports up to 24/192 audio over HDMI and has full bass management for up to three subwoofers. There are 10 parametric filters per channel and 12 global system configuration memories but no mention of any specific room correction system. The Auriga does have an XLR microphone input but we don't know if that will be used for auto-setup or other calibration solution.

The Auriga can be controlled over IP or from your phone or tablet via an app. There is no mention of a remote but we have to believe there is one. It can be connected to the Internet via an Ethernet connection or an included WiFi dongle. There is a second zone of audio but it only supports stereo audio (RCA analog input). The HDMI connections are only version 1.4a so those interested in maintaining future compatibility with HDMI 2.0 or HDCP 2.2 may have cause for concern.



#2 petetherock

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Posted 11 September 2014 - 11:28 AM

Keeping this for a list of Auro enabled gear...



#3 mmu16

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Posted 11 September 2014 - 02:12 PM

That receiver seems pretty rad. 16k for 12 channels of amplification is reasonable by itself, let alone the new auro 3D tech. Here's a link to the actual receiver .  They seem to have other models that decode Auro 3D as well in their product line. 


Edited by mmu16, 11 September 2014 - 02:14 PM.


#4 lucmor444

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Posted 11 September 2014 - 07:26 PM

I plan on getting my Datasat updated to Auro in a few months and will be installing a 16.2 speaker when that occurs. Will provide an update on how it sounds when that occurs.

#5 petetherock

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Posted 16 September 2014 - 10:14 PM

http://www.soundandv...s-dazzling-demo

 

Auro impresses..



#6 lucmor444

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Posted 16 September 2014 - 10:29 PM

People are reporting that Auro is very impressive yet I honestly believe that it doesn't stand a chance against Atmos in respect to what movies will be available with Auro as compared to Atmos.

#7 petetherock

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Posted Today, 03:31 AM

White paper:

http://www.auro-3d.c...-7-20111117.pdf