Did the video frame rate change? Upload your SRT or VTT file and convert the timings to match the new FPS. Runs instantly in your browser.
Your subtitles are processed locally in your browser. No upload required.
If your subtitle file was created for a video at 24 frames per second (FPS), but your video file plays at 25 FPS, the subtitles will slowly drift out of sync. This tool recalculates every timestamp so it perfectly matches your new video.
拖放您的字幕文件(SRT 或 VTT),或点击上传。
选择您字幕当前的帧率以及您视频的目标帧率。
点击“转换 FPS”以调整时间轴并下载同步后的字幕文件。
这是通过按比例缩放字幕的时间戳,使其与播放速度或帧率不同 of 视频保持同步的过程。
当视频被转换为另一种帧率时,其播放时长会发生变化,字幕的时间轴必须对应进行比例缩放调整。
我们的在线工具支持 SubRip (.srt) 和 WebVTT (.vtt) 字幕格式。
您可以在 VLC 播放器的“工具” > “媒体信息” > “编解码器”下查看帧率。