Audio System Dynamic Listening Spot and Ambient Object Interference Cancellation
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Solution Overview
Problem
Conventional audio systems cannot dynamically adjust the optimal listening spot according to user movements and are affected by interference from ambient objects in the target space, leading to a limited and inconsistent listening experience.
Innovation Solution
An audio system comprising a sensor circuit, a host device, and speakers that dynamically sense the target space to generate field context information, identify the user position, and perform channel-based or object-based compensation operations to optimize playback effects and eliminate interference from ambient objects.
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 and continuously adjusting the target listening spot coordinates. The system transitions from a static optimal listening spot to a dynamic one that follows user movement, allowing users to move freely while maintaining consistent listening experience through real-time parameter adjustments.
2Adaptability or versatility
If ambient objects are present in the target space, then the room layout becomes more flexible, but sound energy is absorbed or reflected causing audio distortion
Solution Approach 1:
The patent converts the harmful effect of ambient objects absorbing and reflecting sound energy into beneficial information. By detecting ambient objects and their acoustic attributes, the system calculates compensation parameters that counteract the distortion effects. The harmful sound interference is transformed into actionable data for generating compensatory audio signals, improving overall sound quality.
Solution Approach 2:
The patent changes audio parameters dynamically based on detected ambient objects and user position. The control circuit adjusts audio output parameters including volume, equalization, and spatial positioning to compensate for object-induced distortions. This parameter adaptation allows the system to maintain audio quality despite the presence of various room objects.
3Reliability
If the audio system performs dynamic adjustment and compensation operations, then the listening experience is improved, but the system complexity increases
Solution Approach 1:
The patent implements a multi-functional host device that integrates sensor processing, object detection, user position tracking, and audio parameter control. This universal device performs multiple functions including recognizing ambient objects, calculating compensation parameters, and controlling speaker output, thereby reducing the need for separate dedicated components and managing system complexity through functional integration.
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 recognizer circuit analyzes the ambient image to obtain from the target space, the location, size, and acoustic attribute information of an ambient object, allowing the control circuit to accordingly perform a channel-based compensation operation on the target listening spot to generate optimized first channel audio signal and second channel audio signal.