Audio Rendering with Recording Distance Compensation
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Solution Overview
Problem
Existing audio rendering methods fail to account for overlapping air sound-absorption effects between the sound source and the recording distance, leading to inaccurate audio playback in immersive environments.
Innovation Solution
An audio rendering method that calculates a third distance based on the difference between the recording distance and the listener distance, applying air sound-absorption effects accordingly to prevent overlapping attenuation, and compensates for tone changes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If air sound-absorption effect is applied based on distance between audio object and listener, then acoustic spatial information is improved, but overlapping attenuation occurs when recording distance is involved
Solution Approach 1:
The patent segments the total distance into two distinct components: recording distance (first distance) and listener distance (second distance). By separating these distance measurements, the system can selectively apply air sound-absorption effects only to the listener distance portion, preventing overlapping attenuation while maintaining accurate acoustic spatial information.
2Measurement precision
If air sound-absorption effect is applied to compensate for recording distance, then tone accuracy is improved, but complex calculation is required
Solution Approach 1:
The patent applies air sound-absorption compensation selectively only to the listener distance portion, not the entire sound path. This local quality approach compensates for tone accuracy where needed (between audio object and listener) while avoiding unnecessary calculations for the recording distance portion, thereby reducing overall computational complexity.
3Speed
If simple distance-based rendering is used, then processing speed is improved, but acoustic spatial information accuracy deteriorates
Solution Approach 1:
The patent performs preliminary separation of recording distance and listener distance before the main rendering process. By pre-calculating and storing these distance components, the system avoids complex real-time calculations during rendering, maintaining high processing speed while ensuring accurate acoustic spatial information through selective application of air sound-absorption effects.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This approach ensures accurate and consistent audio playback by preventing overlapping air sound-absorption effects, maintaining sound quality in immersive environments.
Implementation Method 1
applying an effect caused by attenuation due to air sound-absorption based on the third distance
Data Source
AI summary
An audio rendering method and an apparatus for performing the same are disclosed. An audio rendering method according to an embodiment includes obtaining a first distance related to recording of an audio signal related to an audio object, obtaining a second distance that is a distance between the audio object and a listener, and rendering the audio signal by applying an effect caused by attenuation due to air sound-absorption based on the first distance and the second distance.