Object-based audio decouples soundtracks from specific loudspeaker layouts

Evidence

Some audio formats meant primarily for cinema also allow the use of different multi-channel systems to reproduce the audio content. The audio is sent with some metadata, which then defines how the sound is rendered to the loudspeakers. The corresponding methods are called object-based audio techniques. Such systems, like those covered by Robinson et al. (2012) and Lemieux et al. (2013), are called loudspeaker-set-up agnostics. The first movies with sound tracks in such formats were released in 2012. — Ville Pulkki, Matti Karjalainen, Communication Acoustics- An…, 1813

Categorization

• DEFINE: Defines object-based audio: sound sent as objects with rendering metadata rather than fixed channels.
• XREF: Connects to the reader’s interest in acoustic communication applications — this is the audio equivalent of format-agnostic information design, applicable in tech and display contexts.