The Auro 11.1 technological suite contains the Auro-Codec encoding - decoding plugins, Auro-Matic upmixer plugin and the Auro-Panner plugin. On 1 November 2012, DreamWorks Animation announced that it would release 15 of its upcoming movies in the Auro 11.1 format.
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The first movie mixed in Auro 11.1 was Lucasfilm's Red Tails, released in January 2012. By December 2014, 550 installations were committed and installed in theaters worldwide. The first Auro 11.1 system was installed in May 2010 in Galaxy Studios and the format was launched at the spatial audio conference (AES) in October 2010 in Tokyo. This allows Auro 11.1 to be played as 5.1 in the absence of a decoder. The system uses Auro-3D Octopus codec, which allows the 12 channels to be compressed into 6 channels by utilizing the least significant bits for the additional channels and its metadata. The Auromax format extends the capabilities of Auro 11.1 to approach Dolby Atmos and DTS:X. Similarly, the use of arrays for surround and overhead channel also disallows pinpoint localization of sound along the walls as well as within the theater space. However, the lack of a surround back-channel restricts panning due to lack of differentiation between the side and rear sector. The height layer allows for placement of background reflections and reverberations observed in nature as well as allowing for smooth panning from the base layer to the ceiling. Īuro 11.1 is a channel-based system and thus differs in capability compared to competing formats such as Dolby Atmos and DTS:X. The Auro 11.1 cinema sound format is an extension of the existing 5.1 surround sound format by incorporating height and overhead channels to allow for placement and panning of sound in the horizontal and vertical axis. Comparison of 5.1 (left) and Auro 11.1 (right)
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