Priority-Based Audio Rendering for Soundbar Spatial Accuracy
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Solution Overview
Problem
Current adaptive audio systems face challenges in efficiently rendering complex audio content across various speaker configurations, particularly in home environments with limited speaker setups like soundbars, due to increased complexity and differing acoustic characteristics compared to cinema systems.
Innovation Solution
A hybrid, priority-based rendering strategy is implemented using two rendering processors to differentiate and prioritize dynamic audio objects, optimizing processing and memory bandwidth for efficient rendering of adaptive audio content, including channel-based audio and audio objects, to facilitate accurate playback through soundbar systems.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If advanced object-based audio systems are implemented to provide immersive spatial audio experience, then audio quality and spatial accuracy are improved, but system complexity and processing requirements increase significantly
Solution Approach 1:
The patent segments the rendering system into multiple independent rendering processors, each handling specific audio objects or channels. This division allows complex spatial audio processing to be distributed across multiple units, reducing the complexity burden on any single processor while maintaining overall rendering accuracy through coordinated operation of the segmented processors.
2Productivity
If multiple rendering processors are used to handle complex adaptive audio content, then processing capability and audio quality are improved, but memory bandwidth requirements and system coordination complexity increase
Solution Approach 1:
The patent merges the operation of multiple rendering processors by having them process different aspects of the same audio scene simultaneously. Each processor handles specific audio objects or channels, and their outputs are combined to form the complete rendered audio. This merging approach allows parallel processing that improves throughput while optimizing memory bandwidth usage through coordinated access patterns.
3Manufacturing precision
If professional cinema-grade spatial audio systems are adapted for home environments, then audio immersion and spatial accuracy are improved, but compatibility with limited speaker configurations and smaller venue acoustics deteriorates
Solution Approach 1:
The patent implements dynamic rendering that adapts to the playback environment. The rendering processors adjust their operation based on detected speaker configurations and room acoustics, dynamically modifying the spatial audio presentation to maintain accuracy across different home theater setups. This dynamic adaptation allows cinema-grade spatial audio to be effectively delivered in varied home environments with different speaker arrangements.
Data Source
AI summary
Embodiments are directed to a method of rendering adaptive audio by receiving input audio comprising channel-based audio, audio objects, and dynamic objects, wherein the dynamic objects are classified as sets of low-priority dynamic objects and high-priority dynamic objects, rendering the channel-based audio, the audio objects, and the low-priority dynamic objects in a first rendering processor of an audio processing system, and rendering the high-priority dynamic objects in a second rendering processor of the audio processing system. The rendered audio is then subject to virtualization and post-processing steps for playback through soundbars and other similar limited height capable speakers.