What is OAR?
Open Audio Renderer (OAR) specifies a renderer compliant with the Immersive Audio Model and Formats (IAMF) standard. It provides the architecture and algorithms for the rendering of channel-based, scene-based, and object-based Audio Elements to various loudspeaker layouts and headphones. It further defines how to mix these Audio Elements and handle the animation and application of dynamic parameters, such as position and gain, provided by IAMF metadata. This specification also includes provisions for loudness normalization and peak limiting to be applied before final playback.