Early Reflection Concept for Auralization

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This patent describes a method and apparatus for efficiently simulating early reflections in audio rendering, particularly for virtual and augmented reality environments. Instead of computationally expensive and detailed geometrical calculations for each sound reflection based on precise room shape and source/listener locations, it proposes using parameterized early reflection patterns determined by a few key room acoustical parameters (e.g., room size, volume, reverberation time). These patterns are positioned around the listener and do not change with head orientation, providing perceptually convincing spatial audio while greatly reducing computational load.

Use CasesContent extracted from patent full text and abstract with AI.

• Real-time audio rendering in virtual reality (VR) environments to create immersive soundscapes.
• Augmented reality (AR) applications requiring spatially accurate audio without performance bottlenecks.
• Game engines seeking efficient, scalable three-dimensional sound rendering for dynamic environments.
• Audio post-production tools for simulating realistic room acoustics quickly, even with complex scenes.
• Telepresence and remote collaboration systems simulating realistic physical environments for enhanced immersion.

BenefitsContent extracted from patent full text and abstract with AI.

• Significantly reduces computational complexity and processing requirements compared to full geometric simulation of reflections.
• Delivers perceptually plausible and convincing spatial audio by leveraging human auditory limits on detecting fine reflection details.
• Parameterization allows easy adaptation to different environments (indoor, outdoor) and room characteristics with minimal configuration.
• Does not require expert sound engineering knowledge to set up or tune for convincing results.
• Maintains rendering consistency during listener or source movement, facilitating smooth audio experiences in dynamic scenes.
• Supports efficient audio signal transmission, as only a few parameters or small amounts of metadata need to be sent instead of full acoustic descriptions.

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Patent Abstract

The present application concerns early reflection processing concepts for auralization. Embodiments relate to apparatuses and methods for sound rendering considering early reflections and to apparatuses and methods for determining an early reflection pattern.