Multi-Channel Audio Processing for Angle-Matched Video Playback
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Solution Overview
Problem
Existing multi-channel video recording systems fail to match audio content with different shooting angles of view, resulting in a poor audio experience during video playback.
Innovation Solution
An electronic device records multiple channels of audio corresponding to different shooting angles of view, allowing users to select and play audio that matches the video image and angle they are paying attention to, through methods such as timbre correction, stereo beam forming, and gain control processing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If only one channel of audio is recorded in multi-channel video recording mode, then device complexity is reduced, but audio experience quality deteriorates because audio cannot match different shooting angles of view
Solution Approach 1:
The audio recording system is segmented into multiple independent audio channels, with each channel corresponding to a specific video channel and shooting angle of view. This allows audio to be independently processed and matched for each angle, resolving the contradiction by organizing complexity in a structured, angle-specific manner rather than attempting a single unified audio stream.
Solution Approach 2:
Different audio processing parameters and characteristics are applied locally to each audio channel based on its corresponding shooting angle. Each angle receives audio optimized for that specific perspective, improving overall audio experience quality while maintaining manageable complexity through localized processing rather than global uniformity.
2Reliability
If multiple channels of audio are recorded to match different shooting angles of view, then audio experience quality is improved, but device complexity increases
Solution Approach 1:
The audio processing system is designed with multi-functionality to handle multiple audio channels simultaneously, where the same processing framework and algorithms are applied across different angles. This universal approach improves audio experience for all channels while avoiding the need for entirely separate processing systems for each angle, thereby controlling complexity.
Solution Approach 2:
The audio system dynamically switches between different audio channels based on the currently displayed video angle during playback. This dynamic adaptation allows the system to provide angle-matched audio without permanently maintaining all audio processing pathways active simultaneously, reducing the effective complexity at any given moment while preserving full functionality when needed.
3Manufacturing precision
If audio is recorded without considering shooting angle of view, then recording process is simplified, but audio-visual matching accuracy deteriorates
Solution Approach 1:
Audio recording is performed preliminarily for each shooting angle during the video recording phase, with audio channels pre-configured and synchronized to their corresponding video angles. This preliminary angle-specific recording ensures high audio-visual matching accuracy during playback without requiring complex real-time processing, as the matching is already established during capture.
Solution Approach 2:
Separate audio copies are created for each shooting angle, with each audio copy specifically tailored to match its corresponding video channel. This copying approach ensures precise audio-visual matching for each angle while maintaining a standardized recording process framework, balancing accuracy with process manageability.
Data Source
AI summary
Embodiments of this application provide an audio processing method and a device. In a multi-channel video recording mode, a plurality of channels of video images and a plurality of channels of audio can be recorded simultaneously, and different audio can be played during video playback. A specific solution is as follows: After detecting an operation of opening a camera by a user, an electronic device displays a shooting preview interface, and then enters a multi-channel video recording mode. After detecting a shooting operation of the user, the electronic device displays a shooting interface, where the shooting interface includes a plurality of channels of video images. Then, the electronic device records the plurality of channels of video images, and records audio corresponding to each of the plurality of channels of video images based on a shooting angle of view corresponding to each channel of video image.