Steerable Multi-Speaker Array for Directional Audio Control
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Solution Overview
Problem
Existing sound devices lack the ability to selectively direct audio output in multiple directions, making it difficult to share audiovisual features with others while minimizing sound spread in shared environments.
Innovation Solution
A sound producing apparatus with multiple steerable sound producing units and a steering control system that allows for adjustable sound propagation directions and angular ranges, enabling each unit to produce audio sounds independently and allowing users to customize sound distribution.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If sound is produced in all directions, then more people can hear the audio, but the sound spreads too widely and may be unwanted in some areas
Solution Approach 1:
The sound device is divided into multiple independent sound producing units (first sound producing unit, second sound producing unit, etc.), each capable of being independently controlled to direct sound in specific directions. This segmentation allows selective sound distribution to different spatial zones, enabling users to share audio with others in desired directions while minimizing sound spread in unwanted areas.
2Adaptability or versatility
If multiple speakers are used to provide audio in different directions, then sound can be directed selectively, but the device complexity increases
Solution Approach 1:
Each sound producing unit is designed with dual functionality: it can operate independently as a separate sound source, and it can also be controlled individually for directional sound projection. The steering control mechanism provides universal control capability across all sound producing units, allowing a single control system to manage multiple speakers for various audio sharing scenarios without requiring separate control systems for each unit.
Data Source
AI summary
A sound producing apparatus with multi-directivity has two or more speakers to produce music or other types of audio sounds. Each of the speakers can produce audio sounds in a certain direction and at least one speaker is steerable so that its sound propagation direction relative to the others can be changed. Furthermore, one or more speakers can produce audio sounds in an adjustable angular range. One or more of the speakers can be dual-mode speakers, each of which can be operated as a wide-angle speaker or a narrow-angle speaker. With multi-directivity, it is possible to play one type of music in one direction and another type of music in another direction to suit the interests of the audience. The apparatus can be a mobile phone, an audio player, a digital or analog recorder/player, or the like.