Audio Output Reference Signal Control for Noise and Power Balance
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Solution Overview
Problem
Conventional electronic devices generate noise while outputting audio signals, which affects the quality of the audio experience and necessitates a method to eliminate these noise factors.
Innovation Solution
An electronic device with a control module that generates and supplies a reference signal to an audio output unit based on the output value of an audio processing unit, optimizing noise reduction and power usage by selectively enabling the reference signal only when necessary.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If a reference signal is continuously supplied to the audio output unit, then noise is reduced, but power consumption increases
Solution Approach 1:
The reference signal is supplied periodically rather than continuously. The control module monitors the audio signal and activates the reference signal only during periods when noise is detected or audio output is active, thereby reducing overall power consumption while maintaining noise reduction effectiveness during critical periods
Solution Approach 2:
The system dynamically adjusts the supply of reference signal based on real-time audio processing unit output. The control module modulates the reference signal activation state according to the actual audio output conditions, optimizing the balance between noise reduction and power consumption adaptively
2Reliability
If the reference signal generation is always active, then audio quality is maintained, but device complexity increases
Solution Approach 1:
The control module uses feedback from the audio processing unit output to regulate reference signal generation. By monitoring the audio signal characteristics and adjusting reference signal activation accordingly, the system maintains audio quality through intelligent control rather than continuous operation, simplifying the overall device architecture
Solution Approach 2:
The system performs self-regulation by automatically detecting when reference signal activation is needed based on audio output conditions. The control module autonomously manages the reference signal generation without requiring external intervention or complex manual control mechanisms
Data Source
AI summary
Disclosed is an audio output control method and an electronic device supporting the same. The audio output control method includes determining an output of an audio processing unit decoding an audio source signal, and controlling generating of a reference signal to be supplied to an audio output unit in response to an output of the audio processing unit.