Audio Engine Using Geometric Polygons for Dynamic 3D Acoustic Rendering
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Solution Overview
Problem
Current audio processing in computer games lacks the processing power and dynamic capabilities to create realistic audio landscapes, relying on pre-programmed effects and static audio modifications, which results in inferior audio quality compared to video processing.
Innovation Solution
The integration of geometric audio information with video data to dynamically generate audio effects, using acoustic properties and physical models to simulate real-time audio interactions, allowing the audio engine to create a 3D acoustic landscape that adapts to the game environment and listener position.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If pre-programmed effects and static audio modifications are used, then device complexity is reduced, but audio realism and dynamic capabilities deteriorate
Solution Approach 1:
The patent implements dynamic audio processing where the audio engine continuously updates audio effects based on real-time listener position, sound source positions, and environmental geometry. Instead of static pre-programmed effects, the system dynamically calculates acoustic properties such as reverb, occlusion, and diffusion by analyzing the current 3D spatial relationships between listener, sources, and environmental objects, thereby achieving audio realism that adapts to changing game conditions.
Solution Approach 2:
The audio engine autonomously generates audio effects by automatically analyzing geometric audio information and acoustic properties without requiring manual pre-programming for each scenario. The system self-determines appropriate audio modifications by processing spatial data and acoustic parameters in real-time, enabling adaptive audio rendering that responds dynamically to game environment changes.
2Manufacturing precision
If dynamic audio processing matching video processing precision is implemented, then audio realism is improved, but processing power requirements increase
Solution Approach 1:
The patent segments audio processing into distinct computational stages: geometric audio information extraction, acoustic property calculation, spatial relationship analysis, and audio effect generation. By dividing the processing pipeline into modular segments that operate on specific data types (geometry data, acoustic parameters, spatial coordinates), the system achieves video-processing-level precision while optimizing computational efficiency at each stage.
Solution Approach 2:
The audio engine serves multiple functions simultaneously: it processes positional audio for spatial localization, generates environmental reverb effects, calculates occlusion based on geometric data, and adapts audio characteristics to listener position. This multi-functional approach consolidates various audio processing tasks into a single unified system that shares computational resources and data structures, reducing overall processing power requirements while maintaining high precision.
3Adaptability or versatility
If geometric audio information is integrated with video data, then adaptability to game environment is improved, but device complexity increases
Solution Approach 1:
The patent merges geometric audio information with video rendering data by integrating audio processing into the existing 3D graphics pipeline. The system combines spatial coordinates, object geometries, and material properties from video data with acoustic properties to create a unified audio-environment model. This integration allows the audio engine to automatically adapt to game environment changes by leveraging already-computed geometric and spatial information from the video subsystem, achieving high adaptability without proportionally increasing overall system complexity.
Data Source
AI summary
A method to supply audio effects to video games employs graphics information of sound source objects and sound interacting objects in a real time physical model to determine the audio effects. Each sound source and sound interacting object is associated with a computer generated object in the graphical environment. The physical model determines how the sound interacts with the environment at the current object locations and applies the audio effects. The game designer does not need to dub in audio effects artificially in an add-on manner.