Spatial Audio Gain Control for Headset Distance Adaptation
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Solution Overview
Problem
Conventional spatial audio systems fail to account for the changing distance between a user and the streaming audio source, resulting in a static spatial audio experience regardless of the user's movement.
Innovation Solution
Systems and methods that determine the location of an audio headset relative to a streaming source using wireless signals, adjust gain values for virtual speaker channels based on this location, and generate adjusted spatial audio data to emulate the user's position within a virtual speaker array, thereby dynamically changing the audio experience based on movement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If conventional spatial audio systems are used, then the system is simple and easy to implement, but the audio experience is static and does not adapt to user movement
Solution Approach 1:
The patent implements dynamic audio spatialization by continuously updating the virtual speaker array configuration based on real-time location data. The system transitions from a static surround sound configuration to a dynamic one where speaker positions and gain values are adjusted according to the user's movement, creating an immersive audio experience that adapts to user position changes.
Solution Approach 2:
The system employs feedback mechanisms by receiving location data from the audio headset and using this information to adjust the spatial audio configuration. The feedback loop involves: (1) obtaining location data from the headset, (2) calculating updated gain values based on the user's position, and (3) applying these gains to the virtual speaker array channels, thereby continuously adapting the audio experience to user movement.
2Adaptability or versatility
If dynamic spatial audio adjustment is implemented, then the audio experience adapts to user movement, but the processing complexity increases
Solution Approach 1:
The patent changes key parameters of the spatial audio system dynamically, specifically the gain values associated with each virtual speaker channel. By calculating and applying different gain values based on the user's location, the system achieves dynamic adaptation without requiring complete reconfiguration of the entire audio system, thus managing processing complexity while maintaining adaptability.
3Measurement precision
If location tracking and dynamic gain adjustment are added, then spatial audio accuracy improves, but the system complexity increases
Solution Approach 1:
The patent introduces location data as an intermediary element that mediates between the user's physical position and the audio spatialization. This intermediary enables accurate spatial audio by translating physical location information into adjusted gain values for virtual speaker channels, thereby improving spatial accuracy while managing system complexity through a clear data flow architecture.
Data Source
AI summary
A device includes one or more processors configured to obtain, based on a wireless transmission from an audio headset, location data indicative of a location of the audio headset relative to the device. The one or more processors are configured to adjust one or more gain values associated with one or more channels of a virtual speaker array to generate adjusted spatial audio data that emulates positioning of the audio headset relative to the virtual speaker array based on the location data. The one or more processors are also configured to send audio data corresponding to the adjusted spatial audio data to the audio headset.