AR Spatial Audio Alignment via Real-Time Position Tracking
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
In augmented reality (AR) scenarios, users experience a "sense of dislocation" due to inconsistent sound effects when moving relative to recognized objects, as the sound volume does not adapt to the changing distance from the object.
Innovation Solution
An audio processing method that acquires an original image, determines the three-dimensional relative position of a target object, and performs three-dimensional effect processing on a target sound to align its sound source position with the object's position, ensuring a consistent spatial audio experience.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If preset audio is played when an object is recognized, then the audio can be associated with the target object, but the sound volume does not adapt to the changing distance from the object, causing a sense of dislocation for the user
Solution Approach 1:
The patent applies dynamics by making the audio playback characteristics dynamic rather than static. The sound volume and spatial position are continuously adjusted based on the real-time relative position between the user and the target object. As the user moves closer or farther from the object, the audio parameters change dynamically to match the spatial relationship, resolving the contradiction between adaptability to position and spatial audio consistency.
Solution Approach 2:
The patent implements feedback by continuously monitoring the user's position relative to the target object and using this information to adjust the audio output. The system receives position information, processes it to determine spatial relationships, and feeds this back into the audio rendering process. This closed-loop feedback mechanism ensures that the audio consistently reflects the actual spatial configuration, maintaining reliability while adapting to position changes.
2Reliability
If the same audio is played regardless of user position, then the audio playback is simple and stable, but the user experiences a sense of dislocation that reduces immersion in AR scenarios
Solution Approach 1:
The system transitions from static audio playback to dynamic audio rendering. Instead of playing the same audio regardless of position, the system continuously adjusts audio parameters such as volume, pan position, and spatial characteristics based on the user's real-time location. This dynamic approach maintains stability in the audio engine while dramatically improving spatial audio awareness and user immersion.
Solution Approach 2:
The patent changes audio parameters (volume, spatial position, panning) based on the user's relative position to the target object. As the user moves through space, these parameters are adjusted to create a realistic auditory experience that matches the visual AR environment. This parameter-based adaptation resolves the contradiction by maintaining playback stability through systematic parameter adjustment rather than random changes.
3Adaptability or versatility
If three-dimensional effect processing is performed on audio based on real-time position, then the immersive experience is improved, but the computational complexity and processing requirements increase
Solution Approach 1:
The patent applies local quality by focusing computational resources on the audio elements that are most relevant to the user's current view and position. Rather than processing all audio sources with equal complexity, the system prioritizes spatial processing for objects in the user's vicinity or field of view. This selective approach maintains high spatial audio quality where needed while reducing overall computational complexity.
Solution Approach 2:
The system uses parameter-based audio processing where pre-defined audio sources have their parameters (volume, position, pan) adjusted based on user location. This approach is computationally more efficient than generating audio in real-time, as it relies on parameter modification of existing audio assets rather than complex synthesis. The parameter changes are calculated based on simple geometric relationships between user and object positions.
Data Source
AI summary
Provided are an audio processing method and apparatus, a readable medium, and an electronic device. The method includes: acquiring an original image captured by a terminal; determining a three-dimensional relative position of a target object relative to the terminal as a first three-dimensional relative position according to the original image; and performing three-dimensional effect processing on a target sound according to the first three-dimensional relative position to enable a sound source position of the target sound in audio obtained after the three-dimensional effect processing and the first three-dimensional relative position to conform to a positional relationship between the target object and a sound effect object corresponding to the target object, where the target sound is an effect sound corresponding to the sound effect object.