Adaptive Acoustical Treatment Assembly for Dynamic Sound Control
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Solution Overview
Problem
Existing acoustical treatments in architectural spaces face challenges in accommodating different types of music and sound requirements, as they either over-absorb high-frequency energy, affecting speech intelligibility and instrument clarity, or fail to control reverberation effectively, necessitating a compromise between absorption and diffusion.
Innovation Solution
An adaptive acoustical treatment assembly that includes a frame with mounting channels for a removable diffuser element, allowing the system to switch between absorption and diffusion configurations, using an acoustically absorbent panel and a convex rounded diffuser element with reflective material to optimize sound treatment based on music type.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If absorption panels are used to control reverb and echo, then reverberation and echo are reduced, but high-frequency energy is over-absorbed affecting speech intelligibility and instrument clarity
Solution Approach 1:
The acoustical treatment system allows dynamic switching between absorption and diffusion modes by enabling the removal or adjustment of diffuser elements. This dynamic reconfiguration lets the same physical space adapt its acoustic properties based on the specific musical performance requirements, rather than being fixed in one state.
Solution Approach 2:
The system changes the acoustic parameter of the surface from absorptive to diffusive by adding or removing diffuser elements. This parameter change allows the same location to provide different acoustic treatments - when diffusers are present, they scatter high-frequency energy; when removed, absorption dominates. This resolves the contradiction by making the treatment adaptable rather than fixed.
2Loss of energy
If diffusion elements are added to retain high-frequency energy, then speech intelligibility and instrument clarity improve, but the ability to control reverb and echo decreases
Solution Approach 1:
The system dynamically adjusts the balance between diffusion and absorption by allowing the diffuser elements to be added or removed based on performance needs. When controlling reverb and echo is the priority, diffusers can be removed to maximize absorption. When retaining high-frequency energy is priority, diffusers are added to scatter rather than absorb.
3Adaptability or versatility
If a single room is designed to accommodate all types of music, then versatility is improved, but the acoustic quality becomes a compromise that is not ideal for any single application
Solution Approach 1:
The same physical space and acoustical treatment structure serves multiple functions by allowing configuration changes. The frame structure and absorption panels remain permanent, while diffuser elements can be added or removed to create different acoustic environments. This multi-functionality allows one room to be optimized for different music types without requiring multiple dedicated spaces.
Solution Approach 2:
The acoustical treatment transitions from a static, fixed configuration to a dynamic, adjustable system. This dynamic capability enables the room to adapt its acoustic characteristics to match the specific requirements of different musical performances, achieving ideal acoustic quality for each application type rather than settling for a compromised fixed design.
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 a single room to adapt between absorption and diffusion modes, enhancing sound quality by retaining high-frequency energy and reducing echo, thus accommodating various music types without compromising on sound quality.
Implementation Method 1
Absorption removes some or most of the undesired reverb or echo caused in venues with acoustically reflective walls
Implementation Method 2
Sound diffusers are devices or systems that reflect and scatter incident sound waves to that the energy of the waves is diffused in many directions
Implementation Method 3
Sound diffusers are shaped to reflect the sound in various directions to avoid or reduce concentrations
Data Source
AI summary
An acoustical treatment assembly includes a frame, an absorption panel, and a removable diffuser element. The frame has opposing mounting channels. The absorption panel is disposed on the frame and at least in part between the mounting channels, and comprises an acoustically absorbent material. The removable diffuser element has a convex rounded shape and includes acoustically reflective material. Opposing edges of the diffuser element are disposed within the mounting channels.