Dome White Noise Device with Rotating Acoustic Shells
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Solution Overview
Problem
Current sound making devices for generating white noise lack adjustability in sound production, which limits their effectiveness in masking background noise and improving sleep patterns.
Innovation Solution
A sound making device with a dome-shaped design featuring overlapping slots in the outer and inner acoustic shells, a variable speed fan, and a controller for adjusting airflow through these apertures, allowing for adjustable aperture size and shape to control sound tone and volume, along with a mobile app and voice control for enhanced functionality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a fixed aperture design is used in sound making devices, then the device structure is simple, but the sound production adjustability is limited
Solution Approach 1:
The patent implements a rotatable outer acoustic shell that can be rotated to different angular positions, dynamically changing the overlap between outer and inner shell slots to adjust aperture size and shape. This dynamic adjustment mechanism allows the device to produce different sound tones and volumes without requiring multiple fixed configurations, resolving the contradiction between adaptability and complexity.
Solution Approach 2:
The acoustic shell is segmented into an outer rotatable shell and an inner fixed shell, each with separate slot patterns. This segmentation allows independent optimization of each shell's slot configuration and enables the outer shell to be rotated to create different aperture patterns, providing adjustable sound production while maintaining a relatively simple overall structure.
2Adaptability or versatility
If a single speed fan is used, then the device structure is simple, but the sound volume control capability is limited
Solution Approach 1:
The patent employs a variable speed fan with adjustable rotation speeds instead of a fixed speed fan. This dynamic speed control allows the device to generate different sound volumes by varying the airflow rate through the apertures, providing continuous adjustment capability while adding only moderate complexity to the device structure.
3Ease of operation
If no user interface is provided, then the device structure is simple, but the user control capability is limited
Solution Approach 1:
The patent incorporates a user interface with controls for adjusting fan speed and outer shell rotation position, providing users with direct feedback and control over the sound production parameters. This interface allows users to easily adjust sound volume and tone according to their preferences, significantly improving ease of operation while adding a manageable level of complexity through standardized control elements.
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 device provides customizable white noise for improved sound masking and sleep aid, offering adjustable tone and volume settings, increased user control, and integration with mobile apps and voice assistants for enhanced usability.
Implementation Method 1
a variable speed fan arranged inside the outer acoustic shell and inner acoustic shell for forcing air flow out of the apertures
Data Source
AI summary
A sound making device and system for generating white noise is disclosed. The sound making device generally includes a substantially dome-shaped device that includes an outer acoustic shell and an inner acoustic shell mounted atop a base tray. Both the outer acoustic shell and inner acoustic shell have slots (or openings) that overlap to create apertures through which rushing air can pass. The amount of slot overlap is variable. Further, a variable speed fan is arranged inside the outer acoustic shell and inner acoustic shell for forcing airflow out of the apertures. The sound making device also includes a controller and user interface for adjusting the speed of the fan. Further, a sound making system is provided that includes the sound making device in combination with a mobile app.