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IEC 62574-ed.2.0-RLV
Audio, video and multimedia systems - General channel assignment of multichannel audio
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STANDARD published on 31.1.2020
The information about the standard:
Designation standards: IEC 62574-ed.2.0-RLV
Publication date standards: 31.1.2020
SKU: NS-1096124
The number of pages: 147
Approximate weight : 472 g (1.04 lbs)
Country: International technical standard
Category: Technical standards IEC
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Annotation of standard text IEC 62574-ed.2.0-RLV :
IEC 62574:2020 RLV contains both the official IEC International Standard and its Redline version. The Redline version is available in English only and provides you with a quick and easy way to compare all the changes between the official IEC Standard and its previous edition. IEC 62574:2020 specifies the general channel assignment and the metadata for multichannel audio format. This document, with its channel mapping and labelling content, provides the unified usage of channel assignments for source devices, digital audio interfaces and sink devices. The general channel assignment excludes the specification of the exact position of each loudspeaker. The metadata has the exact position of each loudspeaker; however, since the position of the loudspeaker is different in various surround sound formats, the position information of the metadata is not standardized. It is aimed at consumer applications; it is not targeted at theatrical environments. Up to 65 labels for loudspeaker positions and 15 labels for loudspeakers on the display are specified, which can be used for all current multichannel audio formats. The channel assignment concept is room centric and listener centric. This general channel assignment specifies the position of the loudspeaker as seen from the listener. IEC 62574:2020 cancels and replaces the first edition published in 2011. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: a) model of channel assignment spaces is changed; b) definition of channel maps and labels is changed; c) metadata is newly specified; d) channel maps and labels from the first edition are included in Annex A.
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