NovaScribe generates subtitle files (SRT and VTT) automatically from audio or video using AI transcription. Upload a file and download subtitles in minutes. Plans start at $2/month with a 30-minute free trial.
What Are SRT and VTT Subtitle Files?
Subtitles are text overlays that display spoken dialogue synchronized to video playback. They make content accessible to deaf and hard-of-hearing viewers, improve engagement on social media (where most videos play muted), and help viewers follow along in noisy environments.
SRT (SubRip) is the most widely used subtitle format. It works with YouTube, Vimeo, TikTok, LinkedIn, Premiere Pro, DaVinci Resolve, Final Cut Pro, and virtually every video platform and editor.
VTT (WebVTT) is the web-native format designed for HTML5 video players. It supports additional styling options like font color and positioning. YouTube and most modern platforms accept both formats.
Sample SRT Output
1 00:00:00,000 --> 00:00:03,500 Welcome back to the show. Today we're discussing productivity tips. 2 00:00:04,200 --> 00:00:08,100 Thanks for having me. I've been working remotely for five years now. 3 00:00:08,800 --> 00:00:12,400 That's great experience. What's your number one tip? 4 00:00:13,000 --> 00:00:17,600 Definitely time blocking. Schedule deep work and protect those hours.
Each subtitle segment includes precise start/end timestamps synced to the original audio.
Where to Use Your Subtitles
YouTube
Upload SRT/VTT in YouTube Studio under Subtitles. Improves SEO and watch time.
TikTok
Add captions to reach viewers watching without sound — 80% of TikTok videos are viewed muted.
Native video with subtitles gets 2× more engagement. Upload SRT when posting.
Premiere Pro / DaVinci
Import SRT files directly into your timeline for professional editing.
Online Courses
Add subtitles to lecture videos for accessibility compliance and better learning outcomes.
Instagram Reels
Burn subtitles into your Reels for maximum reach across all audiences.
Subtitle Generation Pricing
How to Generate Subtitles
Upload Audio or Video
Drag and drop your file or click to browse. We accept MP3, WAV, M4A, MP4, MOV, and 20+ other formats. Files up to 100MB.
AI Generates Subtitles
Our AI transcribes the audio, detects speakers, and creates precisely timed subtitle segments. Most files process in minutes.
Download SRT or VTT
Review subtitles in the editor, make corrections if needed, and export as SRT or VTT. Upload directly to YouTube, TikTok, or your video editor.
Why Use NovaScribe for Subtitles?
AI-powered subtitle generation with professional-grade timing and accuracy
Precise Timing
Each subtitle segment is timed to the spoken words with word-level precision. No manual syncing required.
99 Languages
Generate subtitles in English, Spanish, French, German, Chinese, Japanese, Arabic, and 92 more languages.
Minutes, Not Hours
A 1-hour video generates subtitles in about 5-10 minutes. Manual captioning the same video would take 4-6 hours.
Speaker Detection
When multiple people speak, subtitles include speaker labels. Useful for interviews, podcasts, and panel discussions.
SRT & VTT Export
Download as SRT (universal) or VTT (web-native). Both work with YouTube, social media, and professional video editors.
Edit Before Export
Review and correct subtitles in the built-in editor. Fix words, adjust timing, and ensure quality before downloading.
Manual Captioning vs AI Subtitles
Manual Captioning
- ✗Takes 4-6 hours per hour of video
- ✗Manual timestamp syncing is tedious
- ✗Expensive if outsourced ($1-3/min)
- ✗Single language per pass
NovaScribe AI Subtitles
- ✓1 hour of video subtitled in 5-10 min
- ✓Timestamps generated automatically
- ✓From $0.30 per hour of video
- ✓99 languages supported
Subtitle Generator FAQ
如何从音频生成字幕？
将您的音频或视频文件通过拖放或文件浏览器上传到NovaScribe。我们的AI转录引擎会处理文件，检测语音内容并生成精确的时间戳，然后创建字幕文件。处理完成后，您可以导出为SRT或VTT格式——两种格式都兼容YouTube、TikTok、LinkedIn以及大多数视频编辑软件。大多数文件只需几分钟即可完成处理。
NovaScribe支持哪些字幕格式？
NovaScribe支持导出SRT（SubRip）和VTT（WebVTT）两种字幕格式。SRT是最广泛支持的格式，兼容YouTube、Premiere Pro、DaVinci Resolve、Final Cut Pro以及大多数社交媒体平台。VTT是HTML5视频播放器使用的Web原生格式，也被YouTube和其他平台所支持。
AI生成的字幕准确度如何？
准确度取决于音频质量、背景噪音和说话者的清晰度。对于背景噪音较少的清晰录音，NovaScribe通常能提供满足专业需求的高准确度。您可以在导出前使用内置编辑器审核和编辑字幕。对于口音较重或包含专业术语的内容，建议进行快速审核。
可以生成不同语言的字幕吗？
可以，NovaScribe支持99种语言的字幕生成，包括英语、西班牙语、法语、德语、葡萄牙语、意大利语、中文、日语、韩语、阿拉伯语、印地语等。系统会自动检测音频中的语言，您也可以手动指定语言以获得最佳效果。
SRT和VTT字幕文件有什么区别？
SRT（SubRip）是使用最广泛的字幕格式——简单、通用，几乎所有视频平台和编辑软件都支持。VTT（WebVTT）是较新的Web原生格式，支持字体颜色和位置等额外样式设置。在大多数情况下，SRT是更稳妥的选择。如果您需要网页播放或自定义样式，请选择VTT。
下载前可以编辑字幕吗？
可以。转录完成后，您可以在NovaScribe的内置编辑器中审核和编辑完整的转录文本。修改词语、调整时间轴、重命名说话者，然后将修正后的版本导出为SRT或VTT格式。这样您无需手动调整时间轴，就能获得专业级别的字幕。
可以上传哪些视频和音频格式？
NovaScribe支持所有常见的音频格式（MP3、WAV、M4A、FLAC、OGG、AAC）和视频格式（MP4、MOV、AVI、MKV、WebM）。对于视频文件，我们会自动提取音频轨道。支持最大100MB的文件。
字幕生成的费用是多少？
字幕生成与转录使用相同的定价。免费试用包含30分钟。付费套餐起步价为每月2美元可使用200分钟（入门版），每月5美元可使用1,000分钟（基础版），每月10美元可使用2,500分钟（专业版），每月20美元可使用6,000分钟（工作室版）。在基础版套餐下，为一个1小时的视频生成字幕大约花费0.30美元。
Note: NovaScribe generates subtitles using AI speech recognition. Accuracy may vary based on audio quality, accents, and background noise. We recommend reviewing subtitles before publishing.