Hybrid Radiator Dynamic Tuning via Smart Fluid Stiffness
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Solution Overview
Problem
Conventional media devices with audio capabilities face limitations in dynamically tuning their audio output due to physical constraints, such as the inability to support heavier passive radiators and the fixed tuning of conventional passive radiators, which restricts their ability to optimize acoustic performance across different frequency ranges.
Innovation Solution
The implementation of a hybrid radiator in media devices, formed using smart fluid or artificial muscle materials, which can change its properties in response to external stimuli, such as electric or magnetic fields, allowing for dynamic tuning to optimize acoustic output across various frequency ranges.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If heavier passive radiators are mounted to improve low frequency acoustic output, then acoustic output quality is improved, but the speaker cabinet cannot support the weight and suffers sound distortion and unwanted vibration
Solution Approach 1:
The passive radiator uses variable stiffness material that can dynamically change its mechanical properties. By adjusting the stiffness parameter in real-time, the system optimizes the passive radiator's performance for different frequency ranges without requiring heavier fixed-mass materials, thereby avoiding distortion and vibration issues.
Solution Approach 2:
The system transitions from static passive radiators with fixed mass and stiffness to dynamic passive radiators whose stiffness can be adjusted in real-time. This dynamic adaptation allows optimal performance across varying frequency ranges without the need for heavier construction, eliminating the weight-related distortion problems.
2Ease of manufacture
If conventional passive radiators are formed with fixed mass and stiffness, then manufacturing is simplified, but they cannot be dynamically tuned to optimize acoustic output at different frequency ranges
Solution Approach 1:
The passive radiator incorporates variable stiffness material that allows post-manufacturing adjustment of mechanical properties. The material's stiffness can be dynamically changed through external control, enabling the same radiator to be tuned for different frequency ranges without requiring multiple fixed designs.
Solution Approach 2:
A single passive radiator design using variable stiffness material can serve multiple frequency ranges and acoustic optimization goals. The same physical component adapts its properties to perform different functions across varying operating conditions, replacing the need for multiple specialized radiators.
3Weight of moving object
If lighter weight speaker cabinets are used, then device portability is improved, but they are unable to support heavier passive radiators for low frequency enhancement
Solution Approach 1:
The variable stiffness material allows the passive radiator to achieve optimal low-frequency performance without increasing mass. By dynamically adjusting stiffness rather than relying on mass, the system maintains light cabinet weight while still achieving effective low frequency output through controlled material properties.
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
This solution enables media devices to provide enhanced audio quality by dynamically adjusting their frequency response, overcoming the limitations of conventional passive radiators and improving sound clarity and distortion issues, particularly in low-frequency ranges.
Implementation Method 1
formed using smart fluid or artificial muscle materials, which can change their properties in response to external stimuli, such as electric or magnetic fields
Implementation Method 2
formed using smart fluid or artificial muscle materials, which can change their properties in response to external stimuli, such as electric or magnetic fields
Implementation Method 3
hybrid radiator in media devices, formed using smart fluid or artificial muscle materials, which can change their properties in response to external stimuli
Data Source
AI summary
Techniques associated with structures for dynamically tuned audio in a media device are described, including receiving data associated with an acoustic output, determining a target frequency response associated with an audio device, the audio device implemented with a hybrid radiator formed using a smart fluid or artificial muscle material, determining a value associated with a property of the smart fluid or artificial muscle material, calculating, using a dynamic tuning application, a magnitude of an external stimulus associated with the value, and sending a control signal to a source, the control signal configured to cause the source to apply the external stimulus, an application of the external stimulus of the determined magnitude configured to change the property of the smart fluid or artificial muscle material.