Loudspeaker Extender for High-Frequency Audio Elevation
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Solution Overview
Problem
Conventional bookshelf loudspeakers cannot be placed on the ground without compromising high-quality sound delivery due to their directional nature, which requires them to be positioned at ear height for optimal listening.
Innovation Solution
A loudspeaker system that includes a bookshelf loudspeaker and an optional extender, where the extender can be connected to the loudspeaker to elevate high-frequency audio production, allowing high-frequency audio to be directed at ear height, enabling the loudspeaker to be placed on the ground without impairing sound quality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If bookshelf loudspeakers are placed on the ground for flexible positioning, then ease of operation is improved, but sound quality deteriorates due to directional characteristics requiring ear-height placement
Solution Approach 1:
The loudspeaker system is divided into two functional segments: a bookshelf loudspeaker unit for flexible placement and an extender component for elevation. This segmentation allows the main body to be positioned anywhere while the extender provides the necessary height for optimal sound projection toward ear level.
Solution Approach 2:
The extender acts as an intermediary element between the bookshelf loudspeaker and the listening position. It serves as a mechanical mediator that elevates the audio output to the appropriate height without requiring the entire loudspeaker to be positioned at ear level, thus resolving the conflict between placement flexibility and sound quality.
2Reliability
If bookshelf loudspeakers are positioned at ear height for optimal sound delivery, then sound quality is improved, but ease of operation deteriorates due to placement constraints
Solution Approach 1:
By separating the loudspeaker into a placeable unit and an elevating extender, the system allows flexible positioning on surfaces like desks or shelves while maintaining proper acoustic orientation through the extender's height-providing function.
Solution Approach 2:
The solution moves the height adjustment function to a separate dimension by adding the extender component. Instead of requiring the entire loudspeaker to be positioned at ear height, only the audio output needs to be elevated, which is achieved by adding vertical dimension through the extender attachment.
3Reliability
If floor-standing speakers are used to achieve proper high-frequency directional projection at ear height, then sound quality is improved, but device complexity increases
Solution Approach 1:
The extender is designed as a universal component that can be attached to bookshelf loudspeakers to provide floor-standing speaker functionality. This multi-functional approach allows a single extender design to work with various bookshelf speaker models, achieving proper high-frequency projection without requiring complex integrated solutions in each speaker unit.
Solution Approach 2:
Rather than building complex high-frequency projection systems into every loudspeaker, the solution segments the functionality into a simple bookshelf unit and a separate extender, reducing the complexity of each individual component while maintaining overall system performance.
Data Source
AI summary
A loudspeaker system is described that includes a loudspeaker and an extender. The loudspeaker can be positioned on the ground and the extender can be optionally connected thereto. When the extender is connected to the loudspeaker, the loudspeaker is capable of selectively sending high-frequency components of an input audio signal to the extender and the extender is capable of playing back such high-frequency components to produce high-frequency audio. Due to the fact that an audio-producing apparatus of the extender can be positioned at a higher elevation than the loudspeaker, the high-frequency audio (which is more directional than lower-frequency audio) can be produced at a height that is likely to match that of the ear height of a user as opposed to producing the audio at floor height.