Video Recording Audio Stream Scanning for Noise Reduction
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Solution Overview
Problem
Traditional video recording methods using built-in camera and microphone devices often result in poor video file quality due to environmental noise, which is not effectively mitigated by existing technologies.
Innovation Solution
A method and device that scan an audio stream broadcasted to a predetermined channel, identify a target audio stream without environmental noise, and combine it with recorded video data to generate a video file, using a device with modules for recording, scanning, determining, and combining audio and video streams.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If traditional video recording method using built-in camera and microphone is used, then the recording process is simple, but the video file quality deteriorates due to environmental noise
Solution Approach 1:
The patent introduces an audio device as an intermediary component that broadcasts audio streams without environmental noise. Instead of directly using the built-in microphone that captures noisy ambient sound, the system uses the audio device as a mediator to provide clean audio input, thereby improving video file quality while adding only one external component to the system.
2Reliability
If built-in microphone is used to collect audio data, then the device structure remains simple, but environmental noise enters the video file resulting in poor quality
Solution Approach 1:
The patent extracts the audio recording function from the built-in microphone and separates it from the video recording process. By using an external audio device that broadcasts audio streams, the system extracts only the useful audio signal without the harmful environmental noise component, thereby improving audio quality and overall video file reliability.
3Manufacturing precision
If audio stream scanning and selection function is added, then audio quality is improved, but the operation complexity increases
Solution Approach 1:
The patent implements self-service functionality where the terminal automatically scans multiple audio streams, identifies those without environmental noise, and presents them for selection. The system performs the complex tasks of audio stream analysis and evaluation automatically, requiring minimal user intervention beyond selecting from pre-evaluated options, thus maintaining ease of operation while improving video file quality.
Data Source
AI summary
Embodiments of the present disclosure provide a method and device for generating a video file, a computer apparatus, and a storage medium. The method includes: obtaining a video-recording instruction, and recording a current picture on a recording interface according to the video-recording instruction; scanning an audio stream broadcasted to a predetermined channel by an audio device; in response to the scanned audio stream meeting a predetermined condition, determining the scanned audio stream to be a target audio stream, and displaying prompt information on the recording interface; and in response to receiving an operation of selecting the target audio stream according to the prompt information, combining the selected target audio stream and the recorded current picture to obtain a video file.