Adaptive Audio Sampling and Clock Tuning for Call Sound Quality
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Solution Overview
Problem
Existing electronic devices fix a preset sampling rate and clock based on codec information during call connections, leading to unnecessary current consumption and suboptimal sound quality when the actual audio signal sampling rates differ from the set rates.
Innovation Solution
Electronic devices compare the set sampling rate from codec information with the actual audio signal rate, adjusting the clock and tuning parameters to match the audio signal, thereby optimizing sound quality and reducing current consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a preset sampling rate and clock are fixedly applied based on codec information during call connection, then the device can maintain a simple and stable configuration, but unnecessary current consumption occurs and sound quality deteriorates when the actual audio signal sampling rate differs from the preset rate
Solution Approach 1:
The patent applies dynamics by making the sampling rate and clock configuration adjustable rather than fixed. The device dynamically determines the actual sampling rate of the audio signal and adjusts the clock and tuning parameters accordingly, transitioning from a static preset configuration to a dynamic adaptive configuration that matches the actual signal characteristics, thereby reducing unnecessary current consumption while maintaining call stability
Solution Approach 2:
The patent implements parameter changes by modifying the sampling rate, clock frequency, and tuning parameters based on the actual audio signal characteristics. Instead of using fixed preset values, the system changes these parameters to match the actual sampling rate detected from the audio signal, optimizing both energy consumption and sound quality
2Ease of operation
If a preset sampling rate and clock are fixedly applied based on codec information during call connection, then the device can simplify the configuration process, but sound quality deteriorates when the preset rate does not match the actual audio signal rate
Solution Approach 1:
The patent applies self-service by enabling the device to automatically detect the actual sampling rate of the audio signal and self-adjust the clock and tuning parameters without requiring manual configuration. The system performs self-diagnosis of the signal characteristics and self-optimization of the processing parameters, maintaining ease of operation while achieving precise sound quality
Solution Approach 2:
The patent implements feedback by continuously monitoring the actual sampling rate of the audio signal and using this information to adjust the clock and tuning parameters. The system creates a closed-loop control where the output (processed audio) is optimized based on feedback about the input signal characteristics, ensuring high sound quality without complex manual configuration
3Stability of the object's composition
If a preset sampling rate and clock are fixedly applied during call connection, then the device can maintain consistent processing parameters, but tuning parameters that do not match the actual audio signal sampling rate are applied, reducing call quality
Solution Approach 1:
The patent resolves this contradiction by introducing dynamic adaptation while maintaining operational consistency. The system dynamically adjusts parameters based on detected signal characteristics, ensuring that the processing parameters remain consistent with the actual signal being processed, thereby maintaining both parameter coherence and high call quality
Data Source
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AI summary
According to various embodiments disclosed in the present document, an electronic device may: acquire, through an application, a request for performing a call with another electronic device; in response to the acquisition of the request, identify a first sampling rate corresponding to a frequency band supported by the application so as to perform communication with another electronic device; acquire an audio signal through a microphone; identify a frequency band of the audio signal; determine a type of the audio signal on the basis of the frequency band; determine a second sampling rate corresponding to the audio signal on the basis of the type of the audio signal; determine a third sampling rate corresponding to a frequency band for performing a call with another electronic device, on the basis of the first sampling rate and the second sampling rate; determine a clock and a tuning parameter on the basis of the third sampling rate; and tune the audio signal on the basis of the clock and the tuning parameter. Various other embodiments identified through the specification are also possible.