Side Sound Speaker Filter Structure for High-Frequency Quality
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Solution Overview
Problem
Side sound generating speakers suffer from defects in high-frequency sound wave propagation, leading to a decline in overall sound quality compared to front sound generating speakers, as the changed sound propagation direction affects the transmission and generation of sound waves.
Innovation Solution
A side sound generating speaker module with a sound wave filtering structure comprising a cavity wall and cover, featuring a slit that allows high-frequency sound waves to be filtered and adjusted, reducing harsh sounds and improving treble quality by guiding sound waves through a vertical direction and using inner walls to create a specific spatial structure for reflection and propagation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If the sound propagation direction is changed to perpendicular to the vibration direction of the vibration diaphragm to achieve side sound generation, then the space occupied by the speaker structure in the thickness direction is reduced, but the high-frequency sound wave transmission is degraded
Solution Approach 1:
A sound wave filtering structure is introduced as an intermediary component within the side sound generating cavity. This structure includes a cavity wall with specific geometric features that act as a mediator to process and optimize high-frequency sound waves, allowing them to propagate effectively despite the perpendicular sound generation direction.
Solution Approach 2:
The cavity wall is designed with specific geometric parameters including thickness, height, and the position of its inner side relative to the vibration diaphragm. By optimizing these parameters, the structure enables effective high-frequency sound wave transmission while maintaining the compact side sound generation configuration.
2Reliability
If a sound wave filtering structure with cavity wall is introduced to improve high-frequency sound wave transmission, then the sound quality is enhanced, but the device complexity increases
Solution Approach 1:
The sound wave filtering structure is merged with the existing side sound generating cavity structure. The cavity wall is integrated into the housing, and the filtering function is combined with the sound generation function, eliminating the need for separate filtering components and reducing overall structural complexity.
Solution Approach 2:
The cavity wall serves multiple functions simultaneously: it forms part of the housing structure, creates the sound wave filtering effect, and helps define the acoustic path. This multi-functionality reduces the need for additional components and simplifies the overall device 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
The sound wave filtering structure significantly enhances the sound quality of side sound generating speakers by attenuating high-pitched sounds and reducing sound wave pauses, improving the response to high-frequency sound waves and overall sound transmission.
Implementation Method 1
a back cavity type sound wave filter 142 which blocks harmful sound waves generated by the loudspeaker unit 120
Data Source
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AI summary
The present invention discloses a sound wave filtering structure. The sound wave filtering structure comprises a cavity wall, a cavity cover and a slit. The cavity cover is mounted on the cavity wall. The cavity wall and the cavity cover are combined to form an inner cavity. The slit is formed on the cavity wall and/or the cavity cover. The cavity wall and the cavity cover seal the inner cavity. A space in the inner cavity is communicated with the outside only through the slit. On the other hand, the present invention further provides a side sound generating speaker module. The side sound generating speaker module at least comprises a side sound generating cavity and the above-described sound wave filtering structure. The side sound generating cavity is configured to guide sound waves to be transmitted from a side surface of a single speaker body. The sound wave filtering structure is arranged on the side sound generating cavity. The slit faces the interior of the side sound generating cavity. The sound wave filtering structure provided by the present invention can adjust and filter high-frequency sound waves. Especially, in the side sound generating speaker module, the sound wave filtering structure can significantly improve the sound quality of the high-frequency sound waves.