AV Amplifier Speaker Position Detection and Auto-Calibration
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Solution Overview
Problem
Existing sound systems that use multiple speakers around the user for surround sound reproduction face challenges in maintaining optimal audio quality when speaker positions are changed, as current methods require frequent and unnecessary measurements, leading to inconvenience and suboptimal sound effects.
Innovation Solution
A sound apparatus with a detection unit to identify changes in speaker positions, a measurement unit to automatically or user-activatedly measure new positions, and an adjustment unit to adjust audio signals based on these measurements, ensuring accurate sound reproduction without unnecessary recalibrations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If measurement is performed every time the sound system is used or every time a predetermined period of time elapses, then the audio quality can be maintained, but the measurement is performed more than necessary, significantly decreasing user convenience
Solution Approach 1:
The system uses a detection unit to monitor whether speaker positions have actually changed, and only triggers measurement when a change is detected. This feedback mechanism prevents unnecessary measurements while ensuring audio quality is maintained when needed.
Solution Approach 2:
The system automatically detects speaker position changes and triggers measurement without requiring user intervention. The detection unit continuously monitors speaker positions and autonomously determines when recalibration is necessary.
2Ease of operation
If measurement is not performed when speaker position changes, then user convenience is maintained, but the audio signal is output with inappropriate configuration, causing the sound system to cannot exhibit sufficient effects
Solution Approach 1:
The detection unit provides continuous feedback on speaker positions, triggering measurement only when actual changes occur. This ensures audio quality is maintained without requiring unnecessary user actions.
Solution Approach 2:
The system performs preliminary detection of speaker positions continuously, so that when a change occurs, the measurement can be triggered immediately without user intervention, maintaining both convenience and performance.
3Productivity
If manual measurement trigger is required, then unnecessary measurements are reduced, but measurements may not be performed when speaker position changes by third party
Solution Approach 1:
The detection unit continuously monitors speaker positions and automatically triggers measurement when changes are detected, eliminating the need for manual user action while ensuring reliable detection of position changes.
Solution Approach 2:
The system autonomously detects speaker position changes and triggers measurement without requiring user intervention, making the system self-sufficient in maintaining audio quality.
Data Source
AI summary
To prevent the measurement of the position of a speaker from not being performed in a case where the position of the speaker is changed, and prevent the measurement of the position of the speaker from being performed more than necessary. An AV amplifier (1) according to an aspect of the present invention includes: a control unit (105) that detects a change in the installation position of at least one speaker (2) that supplies an audio signal; and a measurement unit (106) that measures the installation position of at least the speaker (2) of which the installation position is changed among the plurality of speakers (2), automatically or according to a user operation, after the change is detected by the control unit (195).