Phone Booth Panel-Mounted Directional Speaker for Sound Leakage Control
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Solution Overview
Problem
Existing phone booths that require soundproofing for emergency broadcasts and sound leakage control are hindered by the installation of masking sound speakers, which compromise their ease of installation and disassembly.
Innovation Solution
A panel combination with a directional speaker mounted to the panel, controlled by a trigger signal, allows for sound intrusion or leakage while minimizing its impact by outputting masking sounds, and is designed to be easily installed and disassembled.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If a speaker for outputting masking sound is installed in the phone booth, then the influence of sound intrusion or sound leakage is reduced, but the ease of installation and disassembly is impaired
Solution Approach 1:
The phone booth is divided into multiple panels that can be easily assembled and disassembled. The masking sound speaker is integrated into the panel structure, allowing the entire panel assembly to be installed or removed as a single modular unit, thus maintaining ease of assembly while incorporating the speaker functionality.
Solution Approach 2:
The controller automatically controls the speaker based on detected sound levels without requiring manual intervention. When the sound level inside the phone booth exceeds a predetermined threshold, the controller automatically activates the speaker to output masking sounds, reducing the influence of sound intrusion or leakage without adding complex manual control systems.
2Object-affected harmful factors
If a speaker for outputting masking sound is installed in the phone booth, then the influence of sound intrusion or sound leakage is reduced, but the device complexity increases
Solution Approach 1:
The controller and speaker are integrated into the existing panel structure of the phone booth. The controller is configured to receive sound level information and automatically control the speaker, merging the masking sound functionality with the structural panels rather than adding separate complex systems.
Solution Approach 2:
The system uses automatic control based on sound level detection without requiring manual intervention or complex control interfaces. The controller automatically activates the speaker when sound levels exceed thresholds, simplifying the control mechanism while effectively reducing the influence of sound intrusion or leakage.
3Adaptability or versatility
If the phone booth allows sound intrusion for emergency broadcasts, then emergency broadcasts can be heard, but user concentration is reduced
Solution Approach 1:
The speaker outputs masking sounds periodically or in response to detected sound levels rather than continuously. When sound levels inside the phone booth exceed a predetermined threshold, the speaker activates to output masking sounds, providing noise suppression during normal use while allowing emergency broadcasts to pass through when needed.
Solution Approach 2:
The system converts the harmful effect of sound intrusion into a beneficial control mechanism. By detecting sound levels and automatically activating the speaker to output masking sounds when thresholds are exceeded, the system uses the presence of external sounds to trigger noise suppression, thereby protecting user concentration while maintaining emergency broadcast capability.
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 solution effectively reduces the influence of sound intrusion or leakage without impairing the phone booth's ease of installation, ensuring clear emergency broadcasts and enhanced user concentration.
Implementation Method 1
a directional speaker mounted to the panel, and a controller that receives a trigger signal and controls an output state of the directional speaker according to the trigger signal
Data Source
AI summary
A panel combination includes a panel, a directional speaker mounted to the panel, and a controller that receives a trigger signal and controls an output of the directional speaker according to the trigger signal.