Dynamic Audio Listening Spot Tracking with Ambient Interference Compensation
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Solution Overview
Problem
Conventional audio systems are unable to dynamically adjust the optimal listening spot according to user movements and are affected by ambient objects, leading to reduced or distorted listening experiences due to interference from furniture and room layouts.
Innovation Solution
An audio system comprising a sensor circuit, a host device, and speakers that dynamically sense the target space, identify user position, and perform channel-based or object-based compensation operations to optimize audio signals based on spatial and acoustic attributes of ambient objects, ensuring consistent listening quality regardless of user movement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the optimal listening spot is fixed in a conventional audio system, then the speaker configuration can be simplified, but the listening experience deteriorates when users move away from the optimal spot
Solution Approach 1:
The patent implements dynamic tracking of the optimal listening spot by detecting user position in real-time and adjusting the sound field accordingly. The system transitions from a fixed optimal spot to a dynamically adaptable one that follows user movement, resolving the contradiction between configuration simplicity and experience consistency.
Solution Approach 2:
The system uses sensors to detect user position and provides feedback to the audio processing unit, which then adjusts the speaker output. This closed-loop feedback mechanism maintains optimal listening experience regardless of user position without requiring complex manual reconfiguration.
2Ease of operation
If ambient objects are present in the target space, then the room layout becomes more practical and comfortable, but sound energy is absorbed or reflected causing audio distortion
Solution Approach 1:
The system uses sensors to detect ambient objects that cause sound distortion and converts this harmful information into beneficial data for compensation. By identifying the position and acoustic properties of interfering objects, the system calculates compensation parameters to counteract their negative effects, transforming the problem into a solution.
Solution Approach 2:
The system dynamically adjusts audio parameters (gain, phase, frequency response) based on detected ambient objects and user position. This parameter adaptation compensates for sound absorption and reflection caused by furniture and room layout, maintaining audio quality in practical room configurations.
3Device complexity
If the audio system uses fixed channel-based audio output, then the system complexity is reduced, but the listening effect is greatly reduced or invalidated when users move from the optimal listening spot
Solution Approach 1:
The system dynamically adjusts channel-based audio output based on real-time user position detection. By calculating compensation parameters that account for user movement and ambient object interference, the system maintains reliable listening effects without requiring complex object-based audio processing.
Solution Approach 2:
The system modifies audio output parameters (volume, pan position, frequency response) based on detected user position and ambient conditions. This parameter adaptation ensures consistent listening experience across different user positions while maintaining the simplicity of channel-based audio architecture.
Data Source
AI summary
An audio system is proposed, dynamically playing optimized audio signals based on user position. A sensor circuits dynamically senses a target space to generate field context information. First speaker and second speaker are arranged for audio playback. A host device recognizes a user from the field context information, determines the user position corresponding to the target space, and adaptively assigns the user position as a target listening spot. A sensor circuit contains a camera capturing an ambient image out of the target space. A control circuit utilizes a user interface circuit to perform a configuration procedure which determines location, size and acoustic attribute information of an ambient object, allowing the control circuit to accordingly perform an object-based compensation operation on the target listening spot to generate optimized first channel audio signal and second channel audio signal.