Speech-Timed Subtitle Processing for Word-by-Word Animation
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Solution Overview
Problem
Existing subtitle editing methods are inefficient and inconvenient, requiring manual adjustment and segmentation of subtitle texts, leading to a time-consuming process for achieving desired subtitle effects.
Innovation Solution
A subtitle processing method and apparatus that performs speech recognition on audio to obtain subtitle text and timestamp information, matches text elements with multimedia material units, and synthesizes them to create an animation effect where subtitles appear word by word, simplifying the editing process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If manual input and repeated adjustment of subtitle texts are used, then subtitle editing can be performed, but the editing efficiency is low and the process is time-consuming
Solution Approach 1:
The system performs speech recognition on the audio material in advance to automatically generate subtitle text and timestamp information before the actual subtitle editing process. This preliminary action eliminates the need for manual text input and repeated adjustments, directly resolving the efficiency problem by preparing the subtitle content beforehand.
Solution Approach 2:
The system automatically segments the subtitle text and synchronizes it with the video timeline based on the timestamp information obtained from speech recognition. This self-service mechanism eliminates the need for manual segmentation and timing adjustment, allowing the system to handle subtitle processing autonomously and significantly improving editing efficiency.
2Manufacturing precision
If repeated listening and adjustment of subtitle texts are performed, then accurate subtitle synchronization can be achieved, but the operation complexity increases
Solution Approach 1:
The system replaces the manual mechanical process of repeated listening and adjustment with an automated speech recognition system that processes audio and generates synchronized subtitle text. The speech recognition technology automatically aligns subtitle timestamps with audio content, achieving high synchronization accuracy without requiring manual intervention or repeated operations.
Solution Approach 2:
The system introduces timestamp information as an intermediary element that bridges the subtitle text and the video audio. This timestamp acts as a precise time marker that automatically synchronizes subtitle display with the corresponding audio segments, eliminating the need for manual timing adjustments while maintaining high synchronization accuracy.
3Productivity
If batch text processing is performed manually, then subtitle effects can be achieved, but the workflow becomes inefficient
Solution Approach 1:
The system segments the batch subtitle processing task into automated components: speech recognition processes the audio to extract text, timestamp information is automatically generated for each text element, and the system automatically matches text elements with corresponding video segments. This segmentation of the processing workflow into automated steps eliminates manual intervention and dramatically improves batch processing efficiency.
Data Source
AI summary
The present disclosure relates to a subtitle processing method, a subtitle processing apparatus and an electronic device, wherein the method includes: performing, in a process of editing multimedia material, speech recognition on an audio corresponding to the multimedia material to obtain a subtitle text corresponding to the audio and timestamp information of audio fragments corresponding to respective text elements in the subtitle text; determining material fragments in the multimedia material fragment respectively matching with the text elements according to the timestamp information of the audio fragments respectively corresponding to the respective text elements; and synthesizing the respective text elements respectively with material fragments in a matching time period, to obtain a target multimedia material with an animation effect in which the subtitle text jumps out word by word.