Dolby DP590 杜比全景声直播渲染器


DP590 杜比全景声直播渲染器,支持仿真监听和下变换

Dolby’s object-based audio (OBA) authoring toolkit for broadcast applications consists of the DP590 Broadcast Audio Object Authoring tool (DP590), the DP591 Audio Encoder (DP591) and the DP580 Professional Reference Decoder (DP580). This toolkit provides the ability to do immersive audio authoring, encoding, and monitoring.

The DP590 provides a user friendly interface to give the audio engineer easy access to set up and deliver a new immersive audio experience as channel-based audio (e.g. 5.1.2, 5.1.4). It does this by ingesting audio groups from the mixing console and providing a simple way to create object audio presentations, including mapping sounds to locations in 3D space, and developing associated metadata. It also provides an easy way to monitor the changes to the immersive audio content that has been created, including emulating different speaker configurations.

The DP590 wraps around an audio mixing console as show in the diagram shown below. It enables audio engineers to define and monitor the various combinations of the audio elements that they wish to create. Each defined combination is referred to as a Presentation, and downstream decoders can be set to decode and render each presentation—for example, “5.1 English”—whenever this is required. The metadata used within the presentation is fully defined in the DP590 and is therefore under the control of the audio engineer. Presentations can be appropriately named for the production and may refer to languages, targeted delivery paths, or enhanced experiences as desired by the producers.