Robotic Speaker Positioning to Mitigate SBIR in Rooms
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Solution Overview
Problem
Existing audio speakers fail to provide optimal sound quality due to poor positioning, which is not adjusted based on user location and room acoustics, leading to issues like Speaker Boundary Interference Response (SBIR) that reduce bass response.
Innovation Solution
A system and method that utilize sensors to receive initiation, position, and face direction information from users, performing a calibration process to determine the ideal playback position for a robotic speaker, taking into account acoustic properties of the environment, and positioning it for improved audio balance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the speaker is positioned manually or fixed in place, then the device complexity is reduced, but the audio quality deteriorates due to inability to adapt to user position and room acoustics
Solution Approach 1:
The speaker system transitions from a static fixed position to a dynamic movable platform that can automatically reposition itself based on real-time detection of user location and room acoustic conditions, resolving the contradiction between simplicity and audio quality
Solution Approach 2:
The system performs self-calibration and self-positioning by automatically detecting user position and room acoustics, then moving itself to the optimal location without requiring manual intervention, thereby maintaining ease of use while improving audio quality
2Reliability
If the speaker position is adjusted based on user position and room acoustics, then the audio quality is improved, but the ease of operation deteriorates due to automated calibration requirements
Solution Approach 1:
The system automatically performs calibration and positioning tasks without user intervention, detecting user position and room acoustics independently and moving itself to the optimal location, thereby maintaining operational simplicity while achieving high audio quality
3Reliability
If the speaker is placed in various positions to optimize sound, then the audio quality is improved, but the time required for setup and adjustment increases
Solution Approach 1:
The system performs rapid automated calibration that pre-determines the optimal position by analyzing room acoustics and user location, eliminating the need for time-consuming manual trial-and-error positioning
Solution Approach 2:
The system uses real-time feedback from sensors detecting user position and room acoustic conditions to automatically determine and move to the optimal position, significantly reducing setup time compared to manual adjustment methods
4Reliability
If the speaker moves to the ideal position, then the audio quality is improved by mitigating SBIR, but the device complexity increases due to mobility mechanisms
Solution Approach 1:
The speaker system incorporates mobility mechanisms that enable it to transition from a static to a dynamic state, allowing it to reposition itself automatically based on detected user position and room acoustics, thereby achieving high audio quality while managing the complexity through integrated design
Data Source
AI summary
There is provided a method for providing a target position for a robotic speaker in an environment. The method includes receiving sensor information from one or more sensors related to the environment, obtaining at least one of initiation gesture information, position information, and face direction information based on the sensor information, the face direction information related to one or more users present in the environment, obtaining the target position of the robotic speaker in the environment by performing a calibration process based on the at least one of initiation gesture information, position information, or face direction information and one or more and acoustic properties of the environment, and positioning the robotic speaker at the target position.