Adaptive Audio Channel Mapping for User Location Detection
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Solution Overview
Problem
Existing electronic apparatuses with multiple speakers struggle to dynamically adjust audio output channels based on user location, leading to suboptimal audio experiences, especially when users are not in the predetermined listening region.
Innovation Solution
An electronic apparatus equipped with a detection device to determine user location, a processor to select appropriate mapping information for audio channel output based on user location, and an audio output device to generate and distribute audio signals accordingly, allowing for adaptive audio channel mapping.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If fixed channel mapping is used based on speaker locations, then the audio output structure is simple and stable, but the audio experience deteriorates when users are not in the predetermined listening region
Solution Approach 1:
The patent implements dynamic channel mapping that automatically adjusts audio output configuration based on detected user location. The system transitions from static speaker-based mapping to dynamic user-location-based mapping, where the processor selects different mapping information according to real-time user position detection, enabling the audio system to adapt its behavior to changing conditions.
Solution Approach 2:
The system incorporates feedback through detection devices that continuously monitor user location and provide this information to the processor. The processor uses this feedback to dynamically select appropriate mapping information, creating a closed-loop control system where audio output is continuously optimized based on real-time user position data.
2Loss of energy
If audio signals are output through all speakers, then complete audio coverage is provided, but energy is wasted when some speakers are not needed for the current user location
Solution Approach 1:
The patent extracts and activates only the necessary speakers based on user location detection. When a user is detected in a specific region, the system selectively outputs audio signals only through the relevant speakers associated with that region, deactivating or silencing other speakers. This extraction principle eliminates energy waste by preventing unnecessary audio output from speakers that the user cannot hear.
Solution Approach 2:
The system applies local quality by providing different audio output configurations to different spatial regions. Each speaker or speaker group is optimized for specific user locations, with mapping information tailored to direct audio effectively to the detected user position while minimizing output from irrelevant speakers.
3Adaptability or versatility
If dynamic user-location-based mapping is implemented, then audio experience is optimized for any user position, but the system complexity increases due to detection devices and mapping selection logic
Solution Approach 1:
The patent implements a universal mapping information structure that can handle multiple user locations and scenarios through a standardized framework. The mapping information is designed to be region-agnostic, allowing the same system architecture to serve different user positions and configurations without requiring separate specialized systems for each scenario.
Data Source
AI summary
An electronic apparatus including a detection device configured to detect a user around the electronic apparatus; a plurality of speakers spaced apart from each other; an audio output device configured to generate an audio signal to be provided to each of the plurality of speakers, and provide the generated audio signal to at least one of the plurality of speakers; and a processor configured to control the audio output device to generate the audio signal corresponding to each speaker by using mapping information of a channel to be output through each of the plurality of speakers, wherein the processor is configured to control the audio output device by selectively using one mapping information of first mapping information provided based on locations of the plurality of speakers or second mapping information provided based on a user location, based on the user location detected by the detection device.