Parametric Speaker Array Positioning via Adjustable Stand
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Solution Overview
Problem
As the number of speakers increases, existing techniques for forming an audio spot require different control methods to achieve louder audible sound, necessitating an adjustable solution for positioning the audio spot effectively.
Innovation Solution
An audio spot formation device with a speaker unit and support stand, featuring adjustable height, angle, and direction of parametric speakers, allowing for precise positioning of the audio spot via adjustable components such as height adjustment mechanisms, angle adjustments, and directional control of speakers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If the number of parametric speakers is increased to make audible sound louder, then the sound volume in the audio spot is improved, but the control complexity and difficulty of positioning the audio spot increases
Solution Approach 1:
The patent implements adjustable support stands with height adjustment mechanisms and angle adjustment mechanisms, allowing the parametric speakers to dynamically change their positioning parameters. This enables the system to adapt to different usage scenarios and simplify control by providing mechanical adjustability rather than requiring complex electronic control for multiple fixed-position speakers
Solution Approach 2:
The patent divides the speaker system into multiple independent parametric speakers, each with its own adjustable support stand. This segmentation allows independent positioning of each speaker unit, making it easier to control the overall audio spot formation by adjusting individual units rather than managing a monolithic complex system
2Power
If the number of parametric speakers is increased to make audible sound louder, then the sound volume in the audio spot is improved, but the positioning precision of the audio spot deteriorates
Solution Approach 1:
The adjustable support stands with height and angle adjustment mechanisms enable precise positioning of each parametric speaker. This dynamic adjustability allows for fine-tuning the spatial arrangement of multiple speakers to achieve accurate audio spot formation, compensating for the potential positioning errors that would arise from simply increasing the number of speakers
Solution Approach 2:
The patent changes the physical parameters (height, angle, direction) of the parametric speakers through mechanical adjustment mechanisms. By varying these parameters, the system can precisely control the position and shape of the audio spot, ensuring accurate positioning even when multiple speakers are used to increase sound volume
3Device complexity
If fixed control methods are used for speakers, then the device structure is simple, but the adaptability to different usage scenarios deteriorates
Solution Approach 1:
The patent incorporates adjustable support stands with height adjustment and angle adjustment mechanisms, transforming the fixed speaker mounting into a dynamic, reconfigurable system. This allows the same device structure to adapt to various usage scenarios such as different listening positions, room configurations, and audio spot positioning requirements without requiring completely different device designs
Solution Approach 2:
The adjustable support stand design provides multi-functionality, allowing the parametric speakers to be positioned in various configurations for different applications. The same basic device structure can serve multiple purposes by adjusting the height and angle parameters, enhancing versatility without significantly increasing overall device complexity
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 adjustment of the audio spot's position to suit specific uses, enhancing the ability to form and direct sound effectively in various environments, including overcoming obstacles and tracking moving objects.
Implementation Method 1
a speaker unit (1) that includes a plurality of parametric speakers (1a, 1b, 1c, 1d) which divide a sound wave into a carrier wave and a sideband wave and radiate the carrier wave and the sideband wave
Data Source
AI summary
In an audio spot formation device D including a speaker unit 1 and a support stand 2 that supports the speaker unit 1, the speaker unit 1 includes a plurality of parametric speakers 1a, 1b, 1c and 1d that divide a sound wave into a carrier wave and a sideband wave and radiate the carrier wave and the sideband wave, and a speaker disposition unit 10 in which the plurality of speakers 1a, 1b, 1c and 1d are disposed, the speaker disposition unit 10 is attached to the support stand 2 at a support unit P, at least one of a height of the support stand 2, an angle of attachment of the speaker disposition unit 10 at the support unit P and a direction of at least one parametric speaker of the plurality of parametric speakers 1a, 1b, 1c and 1d is adjustable, and a position at which an audio spot is formed is adjusted via the adjustment.