3D Audio Generation From User-Drawn Virtual Trajectories
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Solution Overview
Problem
Existing 3D audio systems struggle to intuitively and flexibly create and reproduce three-dimensional audio experiences, particularly in virtual and augmented reality environments, lacking the ability to dynamically set sound source positions and reproduction speeds based on user interactions.
Innovation Solution
A 3D audio generating device and method that allows users to place objects in a virtual space and generate 3D audio data by setting sound source positions and reproduction speeds through intuitive user actions, using devices with integrated control, input, and output units, enabling flexible and diverse 3D audio creation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple speakers are provided to surround the user and 3D sound field is created by controlling speaker output according to character movements, then spatial audio immersion is improved, but device complexity and setup requirements worsen
Solution Approach 1:
The patent replaces the mechanical/acoustic system of multiple physical speakers with an electronic signal processing system. The control unit processes audio signals and applies spatial positioning algorithms to create 3D sound fields using existing speaker configurations, eliminating the need for complex multi-speaker physical setups while maintaining spatial audio immersion.
Solution Approach 2:
The control unit is designed to handle multiple functions: it processes audio signals, determines object positions in virtual space, calculates spatial parameters, and controls speaker output. This multi-functional approach allows the system to create 3D sound fields without requiring specialized hardware configurations, making the system more versatile and easier to deploy.
2Adaptability or versatility
If sound source positions are dynamically set based on user input and object positions in virtual space, then audio flexibility and user interaction improve, but processing complexity and computational requirements worsen
Solution Approach 1:
The system pre-establishes the virtual space framework and object position tracking mechanisms before audio generation. By having the control unit continuously monitor object positions and maintain updated spatial data structures in advance, the system reduces real-time computational burden when generating dynamic 3D audio based on user input.
Solution Approach 2:
The control unit automatically correlates user input with object positions and generates appropriate spatial audio parameters without requiring external intervention or complex manual configuration. The system self-adjusts sound source positions based on the relationship between user input and tracked object positions, simplifying the overall processing architecture.
Data Source
AI summary
A 3D audio generating device of a 3D audio system places, in response to an instruction from a user via an input device, an object in a virtual space showing a trajectory of motion corresponding to the instruction. The 3D audio generating device generates 3D audio data in which a selected sound is configured with a source position of the sound that moves along the object.