Object-based audio stores sound not as fixed speaker channels but as individual audio objects, each paired with positional metadata describing where it should be in the space. At playback a renderer reads that metadata and places each object on whatever system the listener actually has — a 5.1 setup, a 7.1.4 immersive array, a soundbar, or virtualized headphones — so one mix adapts to every configuration. This is the model behind Dolby Atmos and MPEG-H, and it enables features impossible with fixed channels: true height, precise placement, interactive dialogue enhancement, and selectable language objects. The tradeoff is complexity in authoring and rendering, but the flexibility is why immersive and next-generation audio is overwhelmingly object-based.
The book · Volume 5 of 7
Audio for Video: A Complete Guide to Sound in Video Products: From Jitter Buffers and Lip Sync to Atmos, Quality Metrics, and Neural Codecs
Object-based audio lets one mix play correctly on a soundbar, a 7.1.4 room or headphones, but only if renderers and metadata behave. This volume explains object-based audio in depth against channel-based and scene-based formats, with Atmos, MPEG-H and binaural rendering, so you can plan an immersive pipeline end to end. Written by Nikolay Sapunov, CEO at Fora Soft.
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