Spatial Audio Rendering with Parametric Interaction Models
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Solution Overview
Problem
Designing virtual audio environments that react realistically to user interactions with multiple audio sources is inefficient due to the time and effort required to define and implement complex metadata-driven models.
Innovation Solution
A method and apparatus for rendering spatial audio signals in a selectable viewpoint audio environment, which involves receiving a selected listening position and orientation, detecting interactions with audio objects based on predefined criteria, and modifying audio objects to derive a spatial audio signal that reflects the interaction, allowing for more flexible and versatile reactions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If complex metadata-driven models are used to define audio source interactions, then the virtual audio environment can react realistically to user interactions, but the time and effort required to design and implement these models increases significantly
Solution Approach 1:
The patent uses audio parametric representations that copy and generalize interaction patterns across multiple audio sources. Instead of defining separate complex metadata models for each audio source interaction, the system creates parametric templates that can be instantiated and modified for different sources, significantly reducing design time while maintaining realistic interaction behavior.
Solution Approach 2:
The system changes the approach from defining fixed metadata models to using adjustable audio parametric representations. These parameters can be dynamically modified to represent different interaction scenarios, allowing the same underlying model to adapt to various situations without requiring complete redesign, thus reducing both time and complexity.
2Adaptability or versatility
If separate interaction models are defined for each audio source, then each source can react individually to user interactions, but the overall system complexity and implementation effort increases
Solution Approach 1:
The patent implements a universal audio parametric representation that can serve multiple audio sources simultaneously. This single versatile framework can model interactions for any number of audio sources with consistent behavior patterns, eliminating the need to create and manage separate complex models for each source while still allowing individual customization through parameter adjustment.
Solution Approach 2:
The system segments the interaction modeling into modular audio parametric representations that can be independently configured but collectively managed through a unified framework. This segmentation allows individual audio sources to have customized parameters while the overall system complexity is reduced through standardized management of these modular components.
Data Source
AI summary
A method for rendering a spatial audio signal that represents a sound field in a selectable viewpoint audio environment that includes one or more audio objects associated with respective audio content and a respective position in the audio environment. The method includes receiving an indication of a selected listening position and orientation in the audio environment; detecting an interaction concerning a first audio object on basis of one or more predefined interaction criteria; modifying the first audio object and one or more further audio objects linked thereto; and deriving the spatial audio signal that includes at least audio content associated with the modified first audio object in a first spatial position of the sound field that corresponds to its position in the audio environment in relation to said selected listening position and orientation, and audio content associated with the modified one or more further audio objects.