HMD Spatial Audio Testing Using Objective Binaural Parameters
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current methods for testing audio spatial perception of head-mounted display devices are subjective and lack objective evaluation, failing to ensure immersive sound experiences in virtual reality, augmented reality, and mixed reality environments.
Innovation Solution
A method, apparatus, and system for objectively testing audio spatial perception by controlling a virtual sound source to different spatial orientations, calculating interaural time difference, interaural level difference, and spectrum curve parameters, and determining if these parameters fall within preset standard value ranges.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If subjective feeling-based testing is used for audio spatial perception, then the testing process is simple and quick, but the testing accuracy and reliability are insufficient
Solution Approach 1:
The patent replaces subjective human evaluation with an automated objective testing system that uses simulated persons equipped with sensors to measure audio spatial perception parameters objectively, eliminating the dependency on human judgment while maintaining measurement accuracy
Solution Approach 2:
The patent introduces simulated persons as intermediaries between the audio testing system and the evaluation process. These simulated persons wear the head-mounted display device and contain sensors that objectively capture audio spatial perception data, serving as a mediator that enables precise measurement without direct human involvement in the evaluation
2Reliability
If objective testing with simulated persons is implemented, then audio spatial perception can be measured accurately, but the testing process becomes more complex and time-consuming
Solution Approach 1:
The patent implements continuous automated testing where the simulated person remains in a fixed position and the system continuously measures audio spatial perception parameters without interruption. The automated data collection and processing continue seamlessly, improving testing efficiency while maintaining high reliability through consistent objective measurement
Solution Approach 2:
The simulated person is designed to autonomously perform the testing process without human intervention. The system automatically positions the virtual sound source, collects audio data through integrated sensors, processes the measurements, and generates results, enabling the testing system to serve itself and improve productivity while maintaining reliable objective assessment
Data Source
AI summary
Disclosed are a method, an apparatus and a system for testing audio spatial perception of a head-mounted display device. The method includes: controlling a virtual sound source to send an excitation signal at a preset spatial orientation, and playing the excitation signal by a speaker of a head-mounted display device, to obtain signals respectively and simultaneously received by left and right ears of a simulated person; calculating a plurality of spatial sound effect parameters of the virtual sound source according to the signals respectively and simultaneously received by left and right ears of the simulated person; determining whether the plurality of spatial sound effect parameters are within respective preset standard value ranges corresponding to the preset spatial orientation.