Level-Based Audio Object Interaction Detection
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing free-viewpoint audio technologies fail to accurately adapt audio rendering to a user's location and orientation in spatial audio environments, leading to inconsistent and immersive experiences, especially when interactions with audio objects occur in varying acoustic conditions.
Innovation Solution
The implementation of a level-based audio object rendering system that detects audio interactions by comparing audio rendering levels against threshold metadata, applying modifications based on sound pressure and environmental factors, allowing for dynamic adjustments in real-time to enhance immersion and realism.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If free-viewpoint audio rendering is implemented without level-based interaction detection, then audio rendering can be processed, but audio-object interactions are not accurately detected and adapted to user location and orientation
Solution Approach 1:
The patent changes the parameter basis for interaction detection from simple distance metrics to audio rendering level comparisons. By comparing the rendered audio level at the user's listening position against threshold values, the system accurately detects when users interact with audio objects without requiring complex spatial tracking infrastructure.
Solution Approach 2:
The patent replaces complex mechanical or geometric interaction detection systems with an acoustic field-based detection method. Instead of tracking precise user position and orientation with sophisticated sensors, the system uses the naturally propagating audio rendering levels to infer interaction states, substituting acoustic measurement for mechanical tracking.
2Adaptability or versatility
If audio rendering adapts to user location and orientation in real-time, then immersion is improved, but computational requirements and processing time increase
Solution Approach 1:
The audio rendering system performs self-service by automatically detecting interaction states through its own rendered output levels. The rendering engine monitors the levels it produces at the listening position and autonomously determines when interaction thresholds are met, eliminating the need for separate complex detection systems and reducing overall computational burden.
Solution Approach 2:
The system implements feedback by continuously monitoring the rendered audio levels at the user's listening position and using this information to adjust rendering parameters in real-time. This closed-loop approach enables adaptive rendering that responds to user movement and interaction while maintaining processing efficiency through iterative refinement rather than exhaustive recalculation.
3Reliability
If level-based audio interaction detection is implemented, then audio-object interactions are accurately detected, but additional metadata and processing requirements are introduced
Solution Approach 1:
The patent makes the audio rendering level data serve multiple functions: it is used both for the primary purpose of audio reproduction and simultaneously for interaction detection. The same rendered audio signal that provides the user experience also contains the interaction information, eliminating the need for separate detection metadata and reducing overall data requirements.
Solution Approach 2:
The patent merges the audio rendering process with the interaction detection process into a unified system. By comparing the rendered audio levels against thresholds within the rendering pipeline itself, the system combines what would traditionally be separate functions (audio output and interaction detection) into a single integrated process, reducing metadata overhead.
Data Source
AI summary
A method includes obtaining a listening position associated with a user and obtaining audio and metadata corresponding to a rendering at the listening position. The method also includes obtaining a listening environment and determining an effect of the listening environment on the rendering at the listening position. The method further includes detecting audio interaction at the listening position by comparing an audio rendering level against a corresponding level threshold, and applying, by a processing device, an audio modification according to the audio interaction detection. Audio is rendered at the listening position based on the applied audio modification.