Early Reflection Pattern Generation Concept for Auralization

Simple SummaryContent extracted from patent full text and abstract with AI.

This patent introduces a concept and method for efficiently simulating early sound reflections in audio rendering, particularly for virtual and augmented reality (VR/AR) environments. Instead of calculating the exact acoustic reflections based on precise room geometry (which is highly computationally demanding), the invention proposes using simplified "early reflection patterns," defined by a few physical/acoustic parameters (like room volume, dimensions, or predelay time). These patterns provide a perceptually convincing audio experience while greatly reducing computational complexity, making real-time and scalable auralization possible even as the listener moves.

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

• Real-time spatial audio rendering in virtual reality (VR) and augmented reality (AR) applications.
• Efficient auralization in gaming environments to simulate realistic room acoustics without high computational costs.
• Binaural rendering for 3D audio experiences in headphones or loudspeakers.
• Automatic sound system setup/tuning in event spaces, auditoriums, or concert halls.
• Interactive audio in architectural design and planning tools for evaluating acoustics.
• Sound design and mixing in film or broadcasting that require plausible simulated environments.
• Augmented reality navigation, where environmental adaptation of audio cues is important.
• Integration into audio codecs for immersive teleconferencing or remote collaboration.

BenefitsContent extracted from patent full text and abstract with AI.

• Significantly reduces computation and processing demands compared to full geometric room acoustic simulation.
• Enables real-time and low-latency audio rendering—critical for VR, AR, and interactive applications.
• Produces perceptually convincing acoustics, even in highly dynamic or changing environments (listener or source moving).
• Requires minimal input: only basic room acoustic parameters are needed, making it accessible for non-experts.
• Robust to changes in head orientation or listener movement: the reflection pattern remains perceptually stable.
• Adaptable to both indoor and outdoor acoustic environments.
• Reduces data transmission (signaling) overhead when streaming or transferring audio bitstreams with spatial information.
• Supports multiple sound sources with a single pattern, optimizing resource usage in complex scenes.

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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.