Virtual sound image control system, ceiling member, and table
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing audio reproduction systems require complex configurations with multiple pairs of loudspeakers to create stereophonic sound images perceivable by multiple users, which is not efficient.
Innovation Solution
A virtual sound image control system utilizing two-channel loudspeakers and a signal processor to generate and output acoustic signals, allowing for the creation of stereophonic sound images with a simple configuration, where the loudspeakers are arranged in line or symmetrically to produce the same sound images for multiple users.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If two or more pairs of loudspeakers are used to create stereophonic sound images for multiple users, then the sound image localization accuracy is improved, but the device complexity increases
Solution Approach 1:
The patent combines multiple loudspeaker pairs into a single pair of loudspeakers that serve multiple users simultaneously. The single loudspeaker pair is strategically positioned and configured to create stereophonic sound images that are perceivable by multiple users side by side, merging the functions of multiple loudspeaker pairs into one unified system.
Solution Approach 2:
The loudspeaker pair is designed to perform multiple functions: it creates stereophonic sound images for multiple users simultaneously, rather than requiring dedicated loudspeaker pairs for each user. This multi-functional design allows one loudspeaker pair to serve the role previously requiring multiple pairs.
2Area of stationary object
If multiple pairs of loudspeakers are deployed to serve multiple users, then the sound coverage area is improved, but the manufacturing cost and device complexity increase
Solution Approach 1:
Multiple loudspeaker pairs are merged into a single loudspeaker pair configuration that covers the same area. The patent achieves this by optimizing the positioning, orientation, and acoustic characteristics of the single loudspeaker pair to provide sufficient sound coverage for multiple users within the same spatial region.
Solution Approach 2:
The patent explores different spatial arrangements and orientations of the loudspeaker pair to expand coverage area without adding more loudspeakers. By changing the dimensional configuration (positioning, angle, height), the system achieves broader sound coverage equivalent to multiple loudspeaker pairs.
Data Source
AI summary
In a virtual sound image control system according to the present invention, a signal processor generates the acoustic signal and outputs the acoustic signal to the two-channel loudspeakers so as to create a virtual sound image to be perceived by a user as a stereophonic sound image. The two-channel loudspeakers are arranged such that a first listening area and a second listening area for the user are symmetric to each other with respect to a virtual plane including a virtual line segment connecting the two-channel loudspeakers together.