Projector Speaker Layout for Multi-User 3D Sound Localization
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Solution Overview
Problem
Existing display technologies do not allow multiple users to simultaneously experience and interact with the metaverse, limiting the ability to output three-dimensional sound to a plurality of users.
Innovation Solution
A display apparatus comprising a projector and a speaker set with tweeters and full-range speakers, arranged symmetrically and with directional radiation holes, and sub speakers positioned on intersecting virtual planes, along with a processor for signal processing and spatial control, to generate and direct three-dimensional sound.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a single projector and headphone setup is used, then the device complexity is low, but only one user can experience the metaverse at a time
Solution Approach 1:
The audio output system is segmented into multiple independent speaker sets, each capable of providing spatial audio to different users simultaneously. Each speaker set includes tweeters and full-range speakers positioned at different locations around the projector, allowing multiple users to experience the metaverse concurrently with personalized spatial audio perspectives
2Adaptability or versatility
If multiple speaker sets are added to support multiple users, then multi-user capability is improved, but the device complexity increases
Solution Approach 1:
Multiple speaker sets are merged into a single integrated audio system around the projector, with symmetric arrangements of tweeters and full-range speakers. This unified approach allows multiple users to receive coordinated spatial audio from different perspectives simultaneously, maintaining system coherence while supporting multi-user experiences
Solution Approach 2:
The audio system transitions from a single-point output to a three-dimensional spatial arrangement of multiple speakers positioned at different locations and orientations around the projector. This dimensional expansion enables multiple users to experience spatial audio from their respective positions in the environment
3Adaptability or versatility
If conventional speakers are used, then the manufacturing is simple, but three-dimensional sound output capability is limited
Solution Approach 1:
Different types of speakers (tweeters and full-range speakers) are positioned at specific locations around the projector, with each speaker type optimized for its designated spatial zone. The radiation holes of the guide tubes are arranged in specific directions to create localized sound fields, enabling three-dimensional spatial audio output with directionally controlled sound distribution
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables the simultaneous output of three-dimensional sound to multiple users, enhancing the metaverse experience by providing spatially controlled audio and improved sound localization.
Implementation Method 1
a speaker set disposed between the case and the projector, and configured to output audio content
Implementation Method 2
Each of the at least one tweeter and the at least one full-range speaker may include: a sound generator configured to generate sound; and a guide tube including a plurality of radiation holes configured to output the sound
Data Source
AI summary
A display apparatus includes: a case; a projector disposed in the case and configured to output video content; and a speaker set disposed between the case and the projector module, and configured to output audio content, wherein the speaker set includes a tweeter and a full-range speaker adjacent to the tweeter.