Merging Technologies has expanded its immersive audio tool set for broadcasters with the release of its Audio Definition Module (ADM ITU-R BS.2076) and MPEGH (by Fraunhofer IIS) export.

Pyramix 11.1The release of Pyramix 10 brought a new bus structure (7.1, 9.1, 13.1, 22.2 etc.) to the DAW, including a 3D panner and the appropriate monitoring section. Pyramix 11.1 is the first DAW with a complete workflow to generate master files with Object-Based Audio (OBA) metadata according to the Audio Definition Model (ADM) or MPEG-H 3D audio.

The ADM development was undertaken with the cooperation of Matthieu Parmentier, the Coordinator of R&D Projects at France TV and the chairman of the EBU Audio Systems Group. Parmentier was already using Pyramix 10 and its 3D immersive tools in his workflow and could give frequent feedback to Merging’s engineering team. Pyramix 11 now completes the former OBA workflow, primarily designed for Dolby Atmos mixing for Film or Immersive Live performance, into a comprehensive workflow for TV production with the addition of multi-language support and ADM format export.

‘OBA is the future of sound for broadcasters, to address multiple platforms with the highest quality experience,’ Parmentier says. ‘To achieve OBA Master files, the Audio Definition Model metadata inserted within Broadcast Wave Files constitutes a flexible and free solution to address the next generation of encoders.’

ADM export interoperability was verified on the IRCAM ADMix renderer tool, developed within the Orpheus project, a Horizon 2020 research project funded by the European Union, while Fraunhofer IIS verified our MPEG-H metadata export on its own authoring tool. As a result of the cooperative development with the Fraunhofer team, a comprehensive MPEG-H workflow is available by exporting Pyramix 11 OBA projects directly to the Fraunhofer MPEG-H Authoring Tool.

This tool is a stand-alone application developed by Fraunhofer IIS for authoring and monitoring of MPEG-H Audio content. It provides monitoring and rendering of channels, objects and higher-order Ambisonics content including the import and export of MPEG-H metadata. The MPEG-H Authoring Tool is already in use within the South Korea’s terrestrial 4K TV broadcast service.


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