Spatial Audio Scene Orientation Adjustment

Resolve Bottlenecks,
Find Innovative SolutionsGenerate Solutions

Solution Overview

Problem

Existing spatial audio technologies struggle to improve the perception of an audio scene when rendered to a listener, particularly in terms of angular offset between the scene orientation and the orientation of identified sectors within the audio scene.

Innovation Solution

An apparatus and method that identify a sector of an audio scene containing one or more persons and determine a modification to the spatial audio content to reduce the angular offset between the scene orientation and the sector orientation, thereby optimizing the spatial distribution of audio sources.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If spatial audio content is rendered with fixed scene orientation, then the audio scene maintains stable spatial distribution, but the angular offset between scene orientation and sector orientation cannot be optimized for different listening scenarios

Engineering Contradiction:

Improveadaptability of audio scene orientationVSAvoidcomplexity of orientation modification system

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The audio scene orientation is made dynamic by allowing rotation based on detected sector orientations. The system continuously adapts the scene orientation to reduce angular offset with active sectors containing persons, transforming a static rendering system into one that dynamically adjusts to spatial audio sources and listener positions.

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The system uses feedback from sector orientation detection to drive scene orientation adjustments. By monitoring the angular offset between scene orientation and sectors with active audio sources, the system automatically rotates the audio scene to minimize this offset, creating a closed-loop adaptive orientation system.

Inventive Principle:

Principle #23Feedback

2Measurement precision

If the audio scene is rotated to align with sector orientation, then the angular offset is reduced and spatial perception is improved, but the relative orientations of multiple audio sources may become unbalanced

Engineering Contradiction:

Improveprecision of spatial audio positioningVSAvoidstability of audio source distribution

Core Design Contradiction:

Measurement precisionVSStability of the object's composition

Solution Approach 1:

The system changes the orientation parameter of the audio scene by applying rotation transformations. This parameter change allows the scene to align with dominant sectors while maintaining the relative spatial relationships between audio sources through coordinated rotation of all elements.

Inventive Principle:

Principle #35Parameter changes

Data Source

PatentUS20250119701A1Modification of spatial audio scenes

Publication Date: 2025.04.10 NOKIA TECHNOLOGIES OY

AI summary

An apparatus comprising means for: identifying a sector of an audio scene, wherein the sector comprises one or more persons; and determining a modification to a spatial audio content, for rendering the audio scene, to reduce an angular offset between an orientation of the audio scene for rendering and an orientation of the identified sector.