Video Recording with Zoom-Linked Audio Volume Control
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Solution Overview
Problem
Existing video recording devices lack flexibility in adjusting sound volume during recording, resulting in poor audio-visual effects.
Innovation Solution
The method involves adjusting sound volume in response to zoom operations, with increased volume during zoom-in and decreased volume during zoom-out, while maintaining image scaling, to enhance the audio-visual experience.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the terminal device records audio at a fixed volume during video recording, then the recording process is simple, but the audio-visual effect is poor and lacks flexibility
Solution Approach 1:
The patent applies dynamics by making the audio volume adjustable and variable during recording. The system allows real-time volume adjustment based on user operations (zoom-in, zoom-out) rather than using a fixed volume, thereby improving adaptability while maintaining manageable complexity through automated volume adjustment mechanisms.
Solution Approach 2:
The patent changes the audio volume parameter dynamically during recording. When the user performs zoom-in operations, the system automatically increases the audio volume; when zoom-out operations are detected, the volume is decreased. This parameter change approach enables flexible volume adjustment without requiring complex manual control interfaces.
2Ease of operation
If the audio volume is increased during zoom-in operations to match visual proximity, then the audio-visual effect is improved, but the audio becomes too loud during normal recording
Solution Approach 1:
The system uses feedback from user operations (zoom-in, zoom-out) to automatically adjust audio volume. When the user performs a zoom-in operation, the system detects this and increases the audio volume accordingly; when zoom-out is detected, the volume is reduced. This feedback mechanism ensures the audio volume matches the visual proximity without requiring manual volume control, resolving the contradiction between audio-visual effect quality and audio volume control.
Solution Approach 2:
The system prevents audio volume issues by anticipating user operations. When a zoom-in operation is detected, the system proactively increases the audio volume before the user might perceive a mismatch. Conversely, when zoom-out is detected, the system preemptively decreases the volume to avoid it being too loud during normal recording, thus preventing audio-visual discrepancies before they occur.
Data Source
AI summary
A video recording method includes a first electronic device that records a first shot image in response to a first operation of a user on a preview interface of an application, and records audio corresponding to the first shot image at a first volume. The first electronic device captures a second shot image and audio corresponding to the second shot image in response to a zoom-in operation of the user on the first shot image. The first shot image and the second shot image are consecutive. The first electronic device records the second shot image, and records the audio corresponding to the second shot image at a second volume.