Spatial Audio Playback Zoom Effect Processing
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Solution Overview
Problem
Current spatial audio technologies struggle to effectively manage audio signal processing for immersive experiences, particularly in 3 DoF, 3 DoF+, and 6 DoF virtual and augmented reality applications, where zooming and rotation affect the user's perspective, leading to suboptimal audio rendering and user experience.
Innovation Solution
An apparatus and method that generate and process audio effect information based on a zooming factor, classifying audio sources into different viewports to apply appropriate audio processing effects such as gain emphasis, de-emphasis, spatial extent increase, or decrease, optimizing audio rendering during zooming and rotation in VR/AR environments.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If audio signal processing is applied for immersive VR/AR experiences, then audio immersion is improved, but device complexity increases
Solution Approach 1:
The patent segments audio sources into different categories (first audio sources within viewport, second audio sources outside viewport) and applies different processing effects to each category. This segmentation allows complex audio processing to be broken down into manageable, classified operations that improve immersion without overwhelming system complexity
Solution Approach 2:
The patent applies different audio processing effects to different spatial regions. Audio sources within the viewport receive emphasis in gain and spatial extent, while audio sources outside the viewport receive de-emphasis. This local quality approach ensures that processing complexity is applied only where needed to enhance the user experience
2Manufacturing precision
If audio processing effects are applied based on viewport classification, then audio rendering quality is improved, but computational load increases
Solution Approach 1:
The patent dynamically adjusts audio processing based on the viewport and zooming factor. As the user zooms or moves the viewport, the classification of audio sources changes, and processing effects are adjusted accordingly. This dynamic approach ensures high rendering quality while avoiding unnecessary processing when conditions don't require it
Solution Approach 2:
The patent changes audio processing parameters (gain emphasis, spatial extent) based on the zooming factor and viewport classification. By adjusting these parameters dynamically according to the user's viewing state, the system maintains high audio rendering quality while optimizing computational efficiency
3Measurement precision
If audio sources are classified into different viewports based on zooming factor, then spatial audio accuracy is improved, but processing time increases
Solution Approach 1:
The patent performs preliminary classification of audio sources into different viewport categories based on the zooming factor. By pre-classifying audio sources before detailed processing, the system establishes spatial accuracy early in the processing pipeline, reducing the time needed for subsequent processing steps
Data Source
AI summary
An apparatus configured to obtain audio signals related to one or more audio sources; determine a zoom effect related to the one or more audio sources; and generate audio effect information for the one or more audio sources based, at least partially, on the zoom effect and a zoom factor, wherein the audio effect information is configured to enable control of audio signal processing associated with the obtained audio signals, wherein the zoom factor is associated with, at least, the one or more audio sources.