Spatial Sound Signal Generation via Digital Twin
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Solution Overview
Problem
In crowded and loud environments, pedestrians face challenges in identifying potential collisions due to general noise exceeding that produced by specific actors, such as vehicles or pedestrians, making it difficult to locate the source of sounds and assess potential safety threats.
Innovation Solution
The generation of spatial sound signals based on a digital twin of a real environment, which mirrors actors in the real environment, allowing the sound signals to be individualized from the auditory perspective of an ego actor to originate from a source actor, thereby enhancing the ability to locate the source of sounds in a three-dimensional space.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If spatial sound signals are generated using digital twin technology, then sound source localization accuracy is improved, but system complexity increases
Solution Approach 1:
The patent creates a digital twin (virtual copy) of the real environment that mirrors the physical space and sound sources. This digital replica allows for accurate sound source localization by comparing the virtual model with actual acoustic measurements, resolving the contradiction between improved localization accuracy and system complexity through creating a manageable virtual representation rather than directly modifying the physical system.
Solution Approach 2:
The digital twin serves as an intermediary between the physical environment and the sound localization system. It mediates the complex relationship between multiple sound sources and the listener by providing a simplified virtual model that can be processed more easily, thus improving localization accuracy while managing system complexity through this intermediate representation layer.
2Loss of information
If individualized spatial sound signals are transmitted to each ego actor, then auditory awareness is improved, but information processing requirements increase
Solution Approach 1:
The patent applies local quality by tailoring the spatial sound signals to each individual ego actor's specific location, orientation, and auditory characteristics. Each user receives customized sound information relevant to their local context rather than generic audio, improving auditory awareness while the system optimizes processing by focusing computational resources on individualized parameters for each user rather than processing all possible information for all users.
Data Source
AI summary
An apparatus, including: an interface operable to receive real-time information related to one or more actors in a real environment; and processing circuitry operable to: generate a digital twin of the real environment, wherein the digital twin is a virtual representation of the real environment; spawn a model that mirrors the one or more actors based on the real-time information; and generate a spatial sound signal based on the digital twin for transmission to an ego actor of the one or more actors in the real environment, wherein the generation of the spatial sound signal comprises generating the spatial sound signal to be individualized from an auditory perspective of the ego actor in the real environment to originate from a source actor of the one or more actors.