Multi-viewpoint Audio Rendering with Persistent Playback
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Solution Overview
Problem
Existing technologies for immersive audio content struggle to maintain a consistent audio experience when multiple users switch between different viewpoints in multi-viewpoint content, leading to disruptions and confusion.
Innovation Solution
The implementation of metadata signaling and audio content rendering engines that allow for persistent audio playback and dynamic modification of audio scenes based on user actions and past content consumption, ensuring a coherent and immersive experience across different viewpoints.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple users switch between different viewpoints in multi-viewpoint content, then user interaction and versatility are improved, but audio experience consistency and reliability deteriorate
Solution Approach 1:
The system performs preliminary actions by recording and storing audio context information before viewpoint switches occur. When a user switches viewpoints, the system retrieves previously recorded audio context from the past viewpoint and uses it to generate appropriate audio for the new viewpoint, ensuring consistent audio experience without requiring real-time audio generation for every possible user path.
Solution Approach 2:
The system implements feedback mechanisms by monitoring user actions and viewpoint changes, then adjusting audio rendering accordingly. The audio rendering engine receives feedback about user interactions and past content consumption, modifying audio output to maintain consistency and coherence across different viewpoints and user paths.
2Adaptability or versatility
If audio rendering is dynamically modified based on user actions, then adaptability and personalization are improved, but system complexity increases
Solution Approach 1:
The audio rendering system is segmented into distinct functional modules: an audio content rendering engine, a metadata signaling system, and a user action monitoring module. Each module handles specific tasks independently, making the complex system more manageable and maintainable while enabling dynamic audio modification based on user actions.
Solution Approach 2:
The system introduces an intermediary metadata signaling layer that mediates between user actions and audio rendering. This metadata layer translates complex user interactions into standardized audio modification instructions, simplifying the relationship between user behavior and audio output while maintaining adaptability and personalization.
3Duration of action of stationary object
If persistent audio playback is maintained across viewpoint switches, then audio continuity and immersion are improved, but audio quality and clarity may deteriorate
Solution Approach 1:
The system dynamically adjusts audio playback based on the current viewpoint and user context. Rather than maintaining static persistent playback, the audio rendering engine continuously adapts audio content, duration, and characteristics to match the current spatial context, ensuring both continuity and quality are maintained simultaneously.
Data Source
AI summary
An apparatus configured to: receive a spatial media file comprising a plurality of viewpoints; determine a viewpoint from the plurality of viewpoints for a user consuming the spatial media file; receive an audio stream associated with the viewpoint; receive an augmentation audio stream, wherein the augmentation audio stream is at least partially different from the audio stream; control an audio rendering of the audio stream based, at least partially, on metadata associated with the augmentation audio stream; and provide the audio rendering of the audio stream for mixing with a rendering of the augmentation audio stream.