Foldable Screen Audio Zoom for Multi-Angle Microphone Shifts
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Solution Overview
Problem
The audio zoom effect is poor when folding a screen of a foldable screen device at multiple angles during video shooting due to changes in the relative positional relationship of sound pickup microphones.
Innovation Solution
An audio zoom method and device that pre-loads audio zoom parameters in a foldable screen device, detects the folding angle, and calls the matching parameter to perform audio zoom, including determining main and noise-canceling microphones and adjusting lens focus for optimal audio capture.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If sound pickup microphones are disposed in fixed positions in a mobile phone with a foldable screen, then the device structure is simple, but the audio zoom effect deteriorates when the screen is folded at multiple angles
Solution Approach 1:
The patent applies dynamics by transitioning from a fixed microphone arrangement to a dynamic one that adapts to different folding angles. The system automatically adjusts microphone parameters (gain, delay, equalization) based on the detected folding angle, allowing the audio zoom function to maintain optimal performance across multiple screen positions without changing the physical microphone locations.
Solution Approach 2:
The patent changes audio processing parameters (microphone gain, delay time, equalization coefficients) according to the folding angle. By pre-storing multiple sets of audio parameters corresponding to different folding angles and selecting the appropriate set based on real-time angle detection, the system maintains optimal audio zoom performance while keeping the physical structure simple.
2Reliability
If audio zoom parameters are adjusted for each folding angle, then the audio zoom effect is maintained, but the system complexity increases
Solution Approach 1:
The patent applies preliminary action by pre-storing multiple sets of audio zoom parameters corresponding to different folding angles in a database before actual use. When video recording starts, the system first detects the current folding angle and then retrieves the pre-computed appropriate parameters, avoiding the need for complex real-time calculations and reducing system complexity during operation.
Solution Approach 2:
The patent creates copies of audio parameters for different folding angles and stores them in a database. Instead of computing parameters in real-time, the system copies the appropriate pre-computed parameters from the database based on the detected folding angle, significantly reducing processing complexity while maintaining audio quality.
Data Source
AI summary
The embodiments of the present application discloses a method and apparatus for audio zoom, and a folding screen device and a storage medium. The method comprises: loading audio zoom parameters preset in a folding screen device; receiving an audio zoom request sent by a user; acquiring a folding angle of the folding screen device; invoking an audio parameter of the audio zoom parameters which is matched to the folding angle, and, in accordance with the audio parameter, performing audio zoom in the folding screen device. The present application can solve the technical problem in the prior art whereby audio zoom performance is poor at a plurality of angles during the folding of a folding-screen mobile phone.