Audio Signal Type Recognition for Automatic Volume Adjustment
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Solution Overview
Problem
Conventional volume adjusting apparatuses require manual adjustment of audio volume each time the audio signal is changed, especially when switching between audio signals with different volume levels.
Innovation Solution
An electronic apparatus with a video receiving module, storage module, and control module that identifies the type of selected audio information and adjusts the output level based on stored setting information, allowing for automatic volume control across different audio signals.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If manual volume adjustment is used for each audio signal, then the user can precisely control the volume, but the operation becomes complex and time-consuming when switching between different audio signals
Solution Approach 1:
The system performs preliminary actions by storing the volume settings that the user has manually adjusted for different audio signal types (TV audio, radio audio, external audio). When the same audio signal type is selected again, the system automatically retrieves and applies the previously stored volume setting, eliminating the need for repeated manual adjustment and saving user time.
Solution Approach 2:
The system creates a copy of the volume setting information for each audio signal type and stores it in memory. This copied setting information is then automatically applied when the corresponding audio signal is selected, replacing the need for manual copying of adjustment parameters across different signals.
2Ease of operation
If automatic volume control is implemented, then the operation becomes simple, but the precision of volume control may be reduced
Solution Approach 1:
The system provides self-service by automatically selecting and applying the appropriate volume setting based on the detected audio signal type. The user simply needs to select the audio source, and the system autonomously applies the correct volume level from stored settings, maintaining both ease of operation and precision through pre-stored accurate values.
Solution Approach 2:
The system performs preliminary volume calibration and stores precise volume settings for each audio signal type before automatic selection is needed. This preliminary action ensures that when automatic volume control is activated, the precision is maintained because the system is applying pre-determined accurate settings rather than making arbitrary adjustments.
3Adaptability or versatility
If volume settings are stored for multiple audio signal types, then the adaptability to different audio sources is improved, but the device complexity increases
Solution Approach 1:
The system segments the volume control functionality by creating separate stored settings for different audio signal types (TV audio, radio audio, external audio). This segmentation allows the system to adapt to various audio sources independently while keeping the storage structure organized and manageable, preventing excessive complexity through structured division of settings.
Solution Approach 2:
The volume control system is designed with multi-functionality to handle multiple audio signal types using a unified storage and retrieval mechanism. A single volume control unit serves multiple purposes by storing and applying different settings for different audio sources, reducing the need for separate control circuits for each signal type and thereby limiting the increase in device complexity.
Data Source
AI summary
An electronic apparatus including: a video receiving module configured to receive video information containing audio information; a storage module configured to store setting information for each type of the audio information; an identification module configured to identify a type of a selected audio information selected from among the audio information contained in the video information received by the video receiving module; and a control module configured to read out the setting information corresponding to the type of the selected audio information identified by the identification module and to control an output level of the selected audio information based on the setting information.