Li-Fi Speaker System with LED Detection for Acoustic Optimization
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Solution Overview
Problem
Non-technical users find it difficult to optimize speaker settings for specific room environments and speaker locations in networked speaker systems, which affects sound quality.
Innovation Solution
A device using Li-Fi communication with LED-based systems to determine listener locations and optimize speaker settings by emitting detection signals, correlating time differences to distances, and establishing appropriate settings based on listener location and identity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If manual optimization of speaker settings is performed, then sound quality can be customized for specific room environments, but the process becomes too complex for non-technical users
Solution Approach 1:
The system automatically performs room analysis and speaker optimization without requiring user intervention. The LED-based detection system autonomously maps the room geometry, identifies speaker positions, and calculates optimal settings, allowing the system to serve itself rather than requiring non-technical users to perform complex manual configuration
Solution Approach 2:
The system automatically adjusts multiple speaker parameters including equalization curves, volume levels, and timing delays based on detected room characteristics. By dynamically changing these parameters based on real-time detection data, the system achieves professional-grade optimization without requiring users to understand the underlying complexity
2Ease of operation
If LED-based detection signals are used to determine listener locations and optimize speaker settings, then sound quality optimization becomes easy for non-technical users, but the device requires integration of multiple components including LEDs, receivers, and processing systems
Solution Approach 1:
The LED components serve multiple functions simultaneously: they act as aesthetic indicators, wireless communication transmitters for room mapping, and active detection signal sources for determining listener locations. By making the LED universal across these different functions, the system achieves sophisticated optimization capabilities without adding separate dedicated components for each function
Solution Approach 2:
The system merges the detection, communication, and optimization functions into a single integrated process. The same LED that provides visual feedback also transmits detection signals, and the same processor that handles Li-Fi communication also performs the acoustic optimization calculations, reducing overall system complexity through functional consolidation
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables easy optimization of speaker settings for improved sound quality by determining listener locations and identities within the room, allowing for tailored acoustic configurations.
Implementation Method 1
at least a first light emitting diode (LED) associated with at least a first audio speaker to communicate with at least a second audio speaker using Li-Fi communication
Implementation Method 2
detect at least a first human listener in an enclosure in which the first audio speaker is located... determine plural time differences between respective times of receipt of plural received returns from respective return locations of respective detection signals
Implementation Method 3
determining, using reflections of signals from at least a first one of the Li-Fi assemblies, a location of at least one human listener
Data Source
AI summary
A networked speaker system communicates using Li-Fi. The LEDs implementing the Li-Fi may also have modes in which they are used to map the walls of a room in which the speakers are located, detect the locations of speakers in the room, and detect and classify listeners in the room. Based on this, waveform analysis may be applied to input audio to establish equalization and delays that are optimal for the room geometry, speaker locations, and listener locations.