Genre-Based Audio Gain Control for Consistent Listening Levels
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Solution Overview
Problem
Current audio players cannot automatically adjust the gain amplifier value based on the genre type of an audio file, leading to inconsistent audio energy levels, which requires manual user adjustment.
Innovation Solution
An audio processing system with automatic gain control that identifies the genre type of an audio file and adjusts the gain amplifier value using a stored gain setting table, ensuring proper audio energy levels for the listener.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If audio players use a fixed gain amplifier value for all audio files, then the device complexity is reduced and operation is simplified, but the audio energy levels become inconsistent across different genre types requiring manual user adjustment
Solution Approach 1:
The system pre-stores multiple gain values corresponding to different genre types in a gain setting table during device initialization or manufacturing. When an audio file is played, the identifying module automatically reads the genre type from the audio file tag and retrieves the corresponding pre-stored gain value, eliminating the need for real-time manual adjustment and reducing operational complexity while maintaining genre-specific audio energy optimization
Solution Approach 2:
The gain managing unit autonomously performs genre identification, gain value selection, and amplifier control without requiring user intervention. The system self-adjusts the gain amplifier based on the detected genre type, making the device operate automatically and improving ease of operation while the automated control logic manages the system complexity internally
2Reliability
If audio players manually adjust gain amplifier value for each genre type, then audio energy levels are optimized for different genres, but the user operation becomes tedious and time-consuming
Solution Approach 1:
The system implements an automatic feedback loop where the identifying module continuously monitors the genre type of the currently playing audio file, compares it with the stored gain settings, and automatically adjusts the gain amplifier accordingly. This closed-loop control ensures consistent audio energy levels across different genres without requiring manual user adjustment, eliminating time loss while maintaining reliability
Solution Approach 2:
The patent replaces the manual mechanical adjustment process (user physically turning knobs or sliding controls) with an automated electronic control system. The gain managing unit uses digital signal processing and automated control circuits to adjust the gain amplifier electronically based on genre detection, substituting manual operation with automated electronic control that maintains audio energy consistency while eliminating adjustment time
3Adaptability or versatility
If audio players use different gain values for different genre types, then audio energy levels are optimized for each genre, but the system complexity increases requiring genre identification and automatic control mechanisms
Solution Approach 1:
The gain managing unit is designed as a multi-functional integrated module that combines genre identification, gain value selection, and amplifier control capabilities in a single device. The identifying module can recognize multiple genre types using the same detection mechanism, and the gain setting table stores multiple gain values that can be applied to different genres. This universal design achieves genre-specific adaptability without proportionally increasing overall system complexity
Solution Approach 2:
The system achieves adaptability by changing the gain parameter based on detected genre types rather than redesigning the entire audio processing chain for each genre. The gain setting table stores pre-determined gain values for different genres, and the system simply switches between these parameter values based on genre identification. This parameter-based approach provides genre-specific optimization while keeping the underlying hardware and processing architecture relatively simple
Data Source
AI summary
The present invention relates to an audio processing system with function of automatic gain control and method thereof. The method includes steps of: receiving a playing command to play an audio file; reading a genre type of the audio file from a tag of the audio file; reading a genre gain value of the genre type from a gain setting table stored in a storage unit; decoding the audio file and generating digital audio signals; converting the digital audio signals to analog audio signals; and signaling a gain amplifier to amplify the analog audio signals by the genre gain value, thereby sounds corresponding to the analog audio signals amplified is proper to a listener's hearing.