ADM Files

Nuendo allows you to import Audio Definition Model (ADM) files, such as those exported from a Dolby Rendering and Mastering Unit (RMU) or the Dolby Atmos Production Suite software, for further mixing and editing.

You can import ADM files in Broadcast Wave Format (BWF), for example, Dolby Atmos premixes, with bed and object audio into new or existing projects, preserving the hierarchical structure of the ADM file and all pan automation. Nuendo supports different ADM file structures containing the elements audioProgramme, audioContent, audioObject, and audioChannel, according to “Recommendation ITU-R BS.2076-1” by the International Telecommunication Union.

Figure: Supported ADM file structures

Cross-references between elements are also supported.

When importing ADM files, the following applies:

  • You can import ADM files into new or existing Nuendo projects.

  • Multi-channel audio from ADM files is extracted and split into mono files.

  • Folder tracks are created to represent the file elements audioProgramme, audioContent, and audioObject. Each folder track contains the associated sub-elements.

  • Folder tracks that represent an audioObject contain the mono audio tracks created from the channels of the object.


    If an audioObject only contains one channel, no folder track is created, but the mono track is created in the associated parent folder track or on the root level in the track list.

  • Cross-references within the ADM file structure are replaced by copies of the corresponding files.

  • Tracks with object audio are automatically assigned to VST MultiPanner, preserving existing pan automation.

  • Tracks with bed audio channels are not automatically assigned to a panner.