Orientation-Responsive Acoustic Array Control for Spatial Sound
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Solution Overview
Problem
Conventional audio systems with multiple devices positioned around a room often fail to maintain the desired spatial effect due to the co-location of acoustic drivers in a single cabinet, leading to degraded sound quality.
Innovation Solution
An audio device with a rotatable casing that adjusts the orientation of its acoustic drivers relative to the direction of gravity, forming acoustic interference arrays to generate destructive interference in specific directions, thereby enhancing sound distribution and maintaining spatial effect.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If multiple acoustic drivers are co-located in a single cabinet to reduce device quantity, then device complexity is reduced, but spatial sound effect is degraded
Solution Approach 1:
The patent employs a rotatable casing that can change orientation between horizontal and vertical positions, allowing the acoustic drivers to dynamically adjust their spatial arrangement. This dynamic reconfiguration enables the system to maintain spatial sound effects despite having drivers co-located in a single cabinet, resolving the contradiction between device consolidation and spatial audio quality.
Solution Approach 2:
The invention utilizes orientation rotation to transition between different spatial dimensions. By rotating the casing from horizontal to vertical orientation, the acoustic drivers effectively change their dimensional arrangement in space, creating distinct spatial sound fields without requiring multiple separate devices. This dimensional transformation preserves spatial audio effects while consolidating hardware.
2Ease of manufacture
If acoustic drivers are fixed in a single orientation to simplify device structure, then ease of manufacture is improved, but adaptability to different listening scenarios is reduced
Solution Approach 1:
The rotatable casing design enables a single device structure to serve multiple functions and adapt to different listening scenarios. The same acoustic drivers can be oriented horizontally or vertically depending on the installation environment, making the device universally applicable to various spatial configurations without requiring multiple specialized device variants.
Solution Approach 2:
The ability to rotate the casing between orientations transforms a static, single-function structure into a dynamic, multi-functional system. This dynamic capability allows the device to adapt to different listening environments while maintaining structural simplicity, resolving the contradiction between manufacturing ease and adaptability.
3Device complexity
If acoustic drivers radiate sound in fixed directions to simplify control, then device complexity is reduced, but sound distribution quality is degraded
Solution Approach 1:
By enabling physical rotation of the casing, the system dynamically adjusts the radiation directions of acoustic drivers to match the desired sound distribution requirements. This physical reorientation provides a straightforward control mechanism that improves sound distribution quality without requiring complex electronic beamforming or active control systems.
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 allows for improved sound distribution and spatial effect by dynamically adjusting the acoustic output based on the device's orientation, providing a more immersive listening experience without the need for multiple separate audio devices.
Implementation Method 1
employing them to form either a first acoustic interference array generating destructive interference in a first direction from the plurality of acoustic drivers or a second acoustic interference array generating destructive interference in a second direction
Data Source
AI summary
An audio device includes a casing configured for operation in a first orientation and a second orientation different from the first orientation, an orientation input device disposed on the casing to detect an orientation of the casing relative to the direction of the force of gravity, and a plurality of acoustic drivers disposed on the casing and operable to form a plurality of acoustic interference arrays, each of which is associated with one of a plurality of audio channels. The acoustic drivers of the audio device operate in a first frequency range and modify at least one of the acoustic interference arrays in response to a change in the orientation detected by the orientation input device.