Hanging Speaker System Cylindrical Housing Wave Cancellation
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Solution Overview
Problem
Conventional speaker systems in enclosed areas experience unwanted wave cancellation due to out-of-phase crossover frequency soundwaves when speakers are spaced apart, leading to muted regions in the listening area.
Innovation Solution
A hanging speaker system comprising speaker assemblies with a cylindrical housing, a hanging component, an input circuit, a low-range speaker, and a higher-range speaker, designed to minimize crossover frequency wave cancellation by optimizing the projection of low and high-frequency soundwaves through a unique port channel and baffle configuration, allowing balanced sound distribution across the listening area.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If speakers are spaced apart in enclosed areas, then sound coverage area is increased, but wave cancellation effects occur at crossover frequencies
Solution Approach 1:
The speaker system is divided into multiple independent speaker assemblies, each capable of producing full frequency range (low and high frequencies). By segmenting the system into multiple units spaced throughout the listening area, each speaker operates independently to avoid the wave cancellation problems that occur when traditional spaced-apart speakers with overlapping frequency ranges interact destructively.
Solution Approach 2:
Each speaker assembly is designed with specific local characteristics - a cylindrical housing with optimized port channels and baffles that create directional sound projection patterns. The low frequency speaker and high frequency speaker within each assembly have tailored acoustic characteristics that allow them to work together locally without causing cancellation, while maintaining effective spacing between assemblies.
2Ease of operation
If multiple speaker assemblies are spaced throughout the listening area, then sound distribution is improved, but out-of-phase crossover frequency waves cause muted regions
Solution Approach 1:
The system segments the frequency ranges handled by each speaker assembly. Each assembly contains both low frequency and high frequency speakers that operate independently, allowing each unit to provide complete frequency coverage locally. This segmentation eliminates the need for overlapping frequency ranges between spaced-apart speakers, preventing the out-of-phase cancellation that creates muted regions.
Solution Approach 2:
The patent changes the acoustic parameters of each speaker assembly by optimizing the port channel geometry and baffle configuration. These parameter changes create specific projection patterns that enhance sound distribution reliability. The cylindrical housing with optimized port channels directs sound waves in controlled patterns, ensuring consistent coverage throughout the listening area without creating dead zones.
3Shape
If speaker housing is made narrow for discreet installation, then aesthetic appearance is improved, but acoustic performance may be compromised
Solution Approach 1:
The speaker housing employs a cylindrical (curved) shape rather than a conventional boxy design. This curvature allows for optimized acoustic pathways within a compact form factor. The cylindrical port channels and internal acoustic structures take advantage of the curved geometry to maintain effective sound projection and frequency response while keeping the overall housing narrow and aesthetically pleasing for discreet ceiling installation.
Solution Approach 2:
The speaker assembly uses a nested configuration where the high frequency speaker is positioned within the structure of the low frequency speaker housing. The cylindrical housing contains multiple acoustic chambers and port channels that are nested within each other, maximizing the acoustic performance within a compact, narrow external dimension suitable for discreet installation.
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
The system effectively reduces or eliminates crossover frequency wave cancellation, ensuring consistent sound coverage throughout the listening area by positioning speakers to project soundwaves in phase, enhancing sound quality and efficiency while allowing for discreet installation.
Implementation Method 1
The upper chamber is acoustically shaped for projecting low frequency soundwaves generated by the low-range speaker down to the lower chamber
Implementation Method 2
The inner chamber encloses the higher range speaker therein and is acoustically shaped for projecting higher frequency soundwaves
Implementation Method 3
Each speaker assembly generates low frequency soundwaves and higher frequency soundwaves while reducing or eliminating out-of-phase crossover frequency wave cancellation effects
Data Source
AI summary
A speaker system broadly comprises a plurality of speaker assemblies each including a speaker housing, an input circuit, a low range speaker, and a higher-range speaker. The input circuit receives audio signals from a sound system or other controller and actively or passively sends the audio signals to the speakers. The low-range speaker is positioned in the upper section and the higher-range speaker is positioned in the lower section. Each speaker assembly is configured to be spaced from the other speaker assemblies within a listening area with each speaker assembly generating low frequency soundwaves and higher-frequency soundwaves. This reduces or eliminates out-of-phase crossover frequency wave cancellation effects within the listening area. The speaker housings are compact while allowing the low-range speaker and higher-range speaker to effectively produce and project desired soundwaves from the suspended speaker housing into the listening area.