Rotating Display Speaker Control for Stable Stereo Output
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Solution Overview
Problem
Rotatable display devices face challenges in maintaining an optimal audio setting when the display is rotated, as the speaker's orientation changes, leading to unwanted sound direction and a lack of suitable sound field or stereo effect.
Innovation Solution
A display device equipped with multiple speakers positioned in different regions relative to the rotating shaft, controlled by a processor that adjusts audio channel output based on the display's rotation, ensuring seamless audio signal distribution and maintaining a stereophonic effect.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the speaker is rotated together with the display, then the display can provide optimized viewing experience for image contents with different aspect ratios, but the speaker may output sound in an unwanted direction and fail to provide suitable sound field or stereo effect
Solution Approach 1:
The audio system is segmented into multiple independent speakers positioned at different regions (left, right, top, bottom) around the rotating shaft. Each speaker can be independently controlled to output specific audio channels, allowing the system to maintain proper sound direction even when the display rotates by separating the audio output functions across multiple spatially distributed speakers.
Solution Approach 2:
The audio channel assignment to speakers is made dynamic based on the rotation angle of the display. The processor continuously adjusts which audio channel is output from which speaker according to the current rotation position, enabling the sound field to adapt dynamically to the display orientation and maintain optimal stereo effect throughout rotation.
2Adaptability or versatility
If multiple speakers are provided in different regions of the display, then the audio signal distribution can be adjusted based on speaker positions to maintain stereo effect, but the device complexity increases
Solution Approach 1:
The multiple speakers are designed to perform multiple functions: they can output different audio channels (front left, front right, rear left, rear right) depending on the rotation angle, and can also function as a unified audio system for different aspect ratios. This multi-functionality justifies the increased complexity by providing versatile audio output adaptation.
Solution Approach 2:
The system changes the operational parameters (audio channel assignment) of the speakers based on the rotation angle parameter. By dynamically adjusting which audio channel is assigned to which speaker according to the rotation position, the system maintains optimal stereo effect without requiring physical reconfiguration of the speakers.
3Adaptability or versatility
If the processor controls the plurality of speakers to output audio signals based on rotation, then the sound field and stereo effect are optimized, but the control complexity increases
Solution Approach 1:
The processor receives feedback about the rotation angle from the rotation shaft and uses this information to dynamically adjust the audio channel assignment to speakers. This feedback mechanism enables automatic adaptation of the sound field to the display orientation, optimizing stereo effect without requiring manual intervention or complex control algorithms.
Solution Approach 2:
The system pre-establishes the relationship between rotation angles and optimal audio channel assignments. Based on the detected rotation angle, the processor can immediately determine the appropriate speaker configuration without real-time calculation, reducing control complexity while maintaining optimized sound field.
Data Source
AI summary
A display device comprises: a motor; a display; a plurality of speakers provided in a plurality of regions of the display; and at least one processor. The at least one processor being configured to output a plurality of audio signals corresponding to a plurality of audio channels to the plurality of speakers, control the motor to rotate the display, based on an input of a user command for rotating the display, and control the plurality of speakers to output the plurality of audio signals in response to a change in positions of the plurality of speakers based on a rotation of the display.