Sound Beam Visualization in MR for Precise Speaker Alignment
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Solution Overview
Problem
Users cannot visually recognize the direction of sound beams outputted from acoustic devices such as speakers, making it difficult to adjust them accurately.
Innovation Solution
An information processing method that utilizes MR goggles to obtain position and direction information of acoustic devices and generate a visual representation of sound beam loci, allowing users to see the direction of the sound beams.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a sound beam is outputted from an acoustic device, then the sound beam can be directed to a specific position, but the user cannot visually recognize the direction of the sound beam
Solution Approach 1:
The patent introduces an intermediary device (display device or camera) that captures images of the acoustic device and the acoustic space, then processes and displays these images with overlaid directional information. This intermediary system bridges the gap between the invisible sound beam and the user's visual perception, allowing indirect observation of the sound beam direction through processed visual information.
Solution Approach 2:
The patent creates a visual copy or representation of the sound beam direction by generating images that show the acoustic device position, acoustic space, and overlaid directional indicators. Instead of directly visualizing the sound beam itself, the system creates a graphical copy that represents the sound beam's trajectory and direction, making it visible to users through display devices.
2Ease of operation
If the user cannot visually recognize the sound beam direction, then the acoustic device can operate without visual interference, but the user cannot adjust the sound beam direction effectively
Solution Approach 1:
The patent implements a feedback mechanism where the system captures images of the acoustic device, processes them to extract directional information, and displays this information back to the user. The user can then use this visual feedback to adjust the sound beam direction, and the system can continue to display updated directional information to confirm the adjustment效果。This closed-loop feedback enables effective control and adjustment of the sound beam.
3Loss of information
If visual information of the sound beam is provided, then the user can recognize the direction, but the system complexity increases due to image processing requirements
Solution Approach 1:
The patent employs a camera that serves multiple functions: capturing the acoustic device, capturing the acoustic space, and providing visual feedback to users. By using a single imaging device for multiple purposes, the system avoids the need for separate specialized sensors or complex multi-component imaging systems, thereby reducing overall system complexity while still providing the necessary visual information.
Data Source
AI summary
An information processing method obtains first position information that indicates a position of at least one of a ceiling surface, a wall surface, or a floor surface in a predetermined space, obtains second position information that indicates a position of an acoustic device that outputs a sound beam in the predetermined space, and obtains direction information that indicates a direction of the sound beam to be outputted from the acoustic device, calculates a locus of the sound beam to be outputted from the acoustic device, based on the first position information, the second position information, and the direction information that have been obtained, and generates a sound beam image that shows the locus of the sound beam, based on a result of calculation.