Topics covered in this article:
- Core functions of the Dolby Atmos Renderer
- Dolby Atmos content creation signal flow using an external Renderer
Core Functions of the Dolby Atmos Renderer
The Dolby Atmos Renderer performs nine core functions:
- Records Bed/Object audio and object metadata to a Master File set synchronized to LTC
- Includes Downmix/Trim metadata for Dolby Digital Plus JOC encoding and Binaural metadata for encoding and monitoring in Master Files
- Exports Master Files to different mezzanine formats: ADM BWF (.wav) and IMF IAB (.mxf), full length or topped/tailed.
- Exports Master Files to .mp4 for quality control (QC) checks on consumer playback devices
- Performs real-time and offline loudness measurements based on 5.1 Re-render, and exports summary or detailed log
- Monitors a Dolby Atmos mix or Master File rendered to the attached Dolby Atmos speaker configuration with or without spatial coding emulation
- Monitors Re-rendered downmixes: 7.1, 5.1, and Stereo (or custom, e.g., 5.1.2)
- Monitors stereo or binaural Re-renders to headphones
- Creates real-time Re-renders or offline exports of Re-renders. These can be full mixes or stems if multiple bed inputs are used and custom groups have been defined
Dolby Atmos Content Creation Signal Flow
The illustration below shows the signal flow for audio, metadata, timecode, configuration files and logs to and from the systems required for Dolby Atmos content creation using an external Renderer.