Audio Signal Parameter Control in VR Systems
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Solution Overview
Problem
Current spatial audio technologies in virtual reality (VR) struggle to effectively control and correct audio signal parameters such as volume, pitch, and position deviations in real-time, leading to an immersive experience that can be disrupted by unwanted noise or misaligned audio sources.
Innovation Solution
A system and method for controlling audio signal parameters in VR using a Capture and Rendering System (CRS) with a user interface that allows for real-time correction of audio source positions and signal properties, employing a controller unit to adjust parameters like volume, reverb, and pitch, and detect deviations from predefined performance characteristics, with automated correction mechanisms.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If automated correction mechanisms are implemented to correct audio signal deviations in real-time, then audio signal stability and immersion quality are improved, but system complexity and processing requirements increase
Solution Approach 1:
The system performs preliminary analysis of audio signals to identify potential deviations from intended spatial positions and parameters before they significantly degrade the audio experience. By detecting and correcting deviations proactively rather than reactively, the system maintains audio stability with less complex correction mechanisms, as prevention requires simpler processing than remediation of severe deviations.
Solution Approach 2:
The system continuously monitors audio signal parameters including position, volume, and pitch, comparing actual values against intended values. This closed-loop feedback mechanism enables automated correction by adjusting audio source positions and parameters in real-time based on detected deviations, improving audio stability through dynamic adaptation without requiring overly complex manual intervention systems.
2Measurement precision
If multiple audio sources are monitored and controlled simultaneously, then overall audio quality and spatial accuracy are improved, but processing time and computational load increase
Solution Approach 1:
The system divides the audio signal processing into separate analysis and correction stages. First, audio signals from multiple sources are analyzed to detect deviations in spatial position and parameters. Then, corrections are applied in a subsequent stage. This segmentation allows parallel processing of multiple audio sources during the analysis phase, maintaining high spatial accuracy while reducing sequential processing time through efficient pipeline architecture.
Solution Approach 2:
The system applies correction only to the extent necessary to resolve detected deviations, rather than continuously adjusting all parameters of all audio sources. By performing partial action—correcting only specific parameters that deviate from intended values—the system maintains spatial accuracy for critical audio sources while minimizing unnecessary processing operations, thereby reducing overall computational load and processing time.
Data Source
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AI summary
A method for controlling audio signal parameters in spatial audio and virtual reality and corresponding system for correcting for deviations in a performance that includes a plurality of audio sources, the method comprising detecting a parameter relating to an audio source, determining if the parameter deviates from a predetermined characteristic and in response to it being determined that the parameter deviates from the predetermined characteristic, causing display of a user interface configured to control the parameter, to allow a user to correct the deviation.