Smart TV Volume Adjustment Using Ambient Sound Detection
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Solution Overview
Problem
Conventional smart TVs require additional hardware to accurately detect ambient volume, leading to inaccurate volume adjustments and increased costs, making it inconvenient for users to manually adjust volumes in different environments.
Innovation Solution
The method utilizes the embedded voice collecting module in smart TVs to collect ambient volume data, comparing it with the current TV volume and applying dynamic adjustment algorithms to automatically adjust the volume without additional hardware, using formulas to calculate positive or negative adjustment values based on the difference between ambient and current volumes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If an ambient volume sensor is added in the TV to detect the ambient volume, then the volume detection capability is improved, but the device complexity and hardware cost increase
Solution Approach 1:
The voice collecting module, originally designed for voice control functions, is repurposed to also collect ambient volume data. This multi-functional use of existing hardware eliminates the need for dedicated ambient volume sensors, resolving the contradiction between measurement precision and device complexity
Solution Approach 2:
The TV uses its own existing voice collecting module to serve the dual purpose of voice control and ambient volume detection. The system serves itself by utilizing already-present hardware resources, avoiding additional hardware costs while maintaining detection capability
2Measurement precision
If a sensor is installed in the remote control to detect ambient volume, then the volume detection is improved, but the ease of operation deteriorates as users must carry the remote control
Solution Approach 1:
The TV performs ambient volume detection autonomously using its built-in voice collecting module without requiring the user to carry or operate the remote control. The system serves itself by automatically collecting and processing volume data, eliminating the inconvenience of mandatory remote carrying
3Device complexity
If the TV speaker affects the ambient volume sensor, then the detection system is simplified, but the measurement precision deteriorates
Solution Approach 1:
The patent extracts and separates the voice collecting function from the speaker system by using a dedicated voice collecting module with its own microphone. This physical separation ensures that the detection system is not contaminated by the TV speaker's output, maintaining measurement precision while keeping the system relatively simple
4Device complexity
If manual volume adjustment is used, then the device complexity is reduced, but the ease of operation deteriorates in different environments
Solution Approach 1:
The system implements automatic feedback control by continuously monitoring ambient volume through the voice collecting module and automatically adjusting TV volume based on the detected environment. This closed-loop feedback mechanism eliminates manual adjustment needs while maintaining simple overall system architecture
Solution Approach 2:
The volume control transitions from static manual settings to dynamic automatic adjustment based on real-time environmental conditions. The system adapts volume levels dynamically according to ambient noise levels, improving operational convenience without significantly increasing complexity
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
This approach enhances the accuracy of ambient volume detection and adjusts the TV volume seamlessly according to the user's environment, improving user experience without increasing hardware costs.
Implementation Method 1
utilizing a television to collect an ambient volume VR
Data Source
AI summary
A voice module of a television collects environmental volume Vr of an environment where a user is located; first current volume Vc of the television is obtained and compared with the environmental volume Vr, so as to determine whether the television volume needs to be adjusted; a desired volume value of the television requiring volume adjustment is calculated by means of a volume curve dynamic adjustment algorithm, and the television automatically adjusts its volume to the desired volume value.