Foldable Video Call Audio Control for Voice-Preserving Noise Cancellation
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Solution Overview
Problem
Conventional noise canceling technologies in electronic devices fail to distinguish between a speaker's voice and ambient noise effectively, especially in changing form factors like foldable or slidable devices, leading to the misinterpretation of the speaker's voice as noise.
Innovation Solution
An electronic device with a flexible display, microphones, sensors, and processors that dynamically adjust audio signals based on the device's folding state, enhancing noise cancellation during video calls by increasing sound from the front while reducing other sounds.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If conventional noise canceling technology removes the largest sound signals as noise, then ambient noise is reduced, but the speaker's voice is mistakenly removed when it is larger than ambient noise
Solution Approach 1:
The system dynamically adjusts noise canceling parameters based on the folding state of the device. When the device is folded, the noise canceling algorithm is adapted to account for the changed microphone positions and sound field characteristics, preventing voice removal while maintaining noise suppression effectiveness
Solution Approach 2:
The noise canceling parameters are changed based on the device's folding state. Different parameter sets are applied depending on whether the device is folded or unfolded, optimizing the balance between noise removal and voice preservation for each configuration
2Adaptability or versatility
If the microphone position is changed according to the form factor of the electronic device, then adaptability to different configurations is improved, but dynamic adjusting of audio signals becomes required
Solution Approach 1:
The audio signal processing system is made dynamic by automatically detecting the folding state through sensors and adjusting processing parameters accordingly. This dynamic adaptation handles the complexity of multiple form factors without requiring manual configuration
Solution Approach 2:
The system uses sensor feedback to detect the folding state and automatically adjusts audio processing parameters based on this feedback. This closed-loop approach manages the complexity of form factor adaptability by using real-time state information to guide processing decisions
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
Improves noise cancellation by selectively amplifying the speaker's voice during video calls, regardless of the device's form factor, providing clearer communication in noisy environments.
Implementation Method 1
identify a folding state of the electronic device through the sensor
Implementation Method 2
adjust a sound signal received through the at least one microphone based on the folding state
Data Source
AI summary
According to an embodiment, an electronic device may comprise: a flexible display, at least one microphone, a sensor, a communication module comprising communication circuitry, and at least one processor operatively connected with the flexible display, the at least one microphone, the sensor, and the communication module. The at least one processor may be configured to: based on receiving a call signal from an external electronic device through the communication module, identify whether the call signal is a video call signal, based on the call signal being the video call signal, identify a folding state of the electronic device through the sensor, adjust a sound signal received through the at least one microphone based on the folding state, and control the communication module to transmit the adjusted sound signal to the external electronic device.