User Terminal Subtitle Generation for Ambient Noise Adaptation
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Solution Overview
Problem
Existing video playback technologies fail to adapt to varying ambient noise levels, leading to issues such as hearing impairment from excessive volume or discomfort due to loud audio in noisy environments, and disturbance to others in quiet environments.
Innovation Solution
A video display method and user terminal that measure ambient noise and generate subtitles based on the voice signal of the video when it exceeds or falls below a predetermined allowable range, with settings adjusted according to user characteristics and location, and earphone usage, using voice recognition to extract and display subtitles.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If the volume of the voice signal is increased in a noisy environment, then the user can hear the video voice, but the user may develop hearing impairment
Solution Approach 1:
The patent introduces subtitles as an intermediary medium to convey voice information when ambient noise makes audio playback problematic. Instead of directly increasing volume to overcome noise, the system provides text-based alternative that bypasses the harmful high-volume audio exposure while maintaining voice signal accessibility.
Solution Approach 2:
The system dynamically changes the parameter of information delivery mode from audio-only to text-based subtitles based on detected ambient noise levels. When noise exceeds thresholds, the system transitions to displaying subtitles, effectively changing how voice information is transmitted to the user without increasing audio volume.
2Object-generated harmful factors
If the volume of the voice signal is decreased in a quiet environment, then people around the user are not disturbed, but the user may not hear the video voice clearly
Solution Approach 1:
Subtitles serve as an intermediary that allows the user to consume voice information visually rather than auditorily. This enables low-volume or muted audio playback in quiet environments while maintaining clear access to dialogue content through text display.
Solution Approach 2:
The system dynamically adjusts the information delivery mode based on ambient noise conditions. In quiet environments, it enables subtitle display with reduced audio volume, and in noisy environments, it increases subtitle reliance, creating a dynamic adaptation to environmental acoustics.
3Reliability
If subtitles are generated and displayed, then the user can understand video content in noisy environments, but the device complexity increases
Solution Approach 1:
The system uses the existing voice signal already present in the video playback as the source material for generating subtitles. By processing and transcribing the audio that is already being decoded for playback, the system avoids the need for separate recording equipment or additional input channels, reducing overall system complexity.
Solution Approach 2:
The voice recognition and subtitle generation system is designed to work with the existing video playback infrastructure. The same audio decoding and processing pipelines are leveraged for both audio output and subtitle generation, allowing one system to serve multiple functions and reducing redundant components.
Data Source
AI summary
A video display method of a user terminal, includes determining whether ambient noise measured when a video is played is in an allowable range, and generating subtitles based on a voice signal included in the video in response to the ambient noise being determined to be out of the allowable range. The method further includes displaying the generated subtitles with the video.