What Is Subtitle Studio?
Subtitle Studio is a comprehensive subtitle creation and editing toolkit built into SoundWorks. It handles the full subtitle workflow: generate subtitles from audio using Whisper AI, import and edit existing SRT or VTT files, adjust timing, translate text, convert between formats, and export ready-to-use subtitle files.
Whether you are adding captions to YouTube videos, preparing accessibility subtitles, or converting between subtitle formats, Subtitle Studio provides all the tools in one place — without requiring a separate subtitle editor.
Why Use Subtitle Studio?
AI-powered generation. Generate subtitles directly from audio or video files using built-in Whisper transcription. Automatic timing, punctuation, and segmentation with high accuracy.
Edit with precision. Adjust subtitle timing, text, and formatting in a dedicated editor. Shift all timestamps at once, split or merge subtitle blocks, and fine-tune synchronization.
Convert between formats. Convert SRT to VTT, VTT to SRT, or export as plain text. Handle format differences automatically without manual editing.
Translate subtitles. Use the integrated AI Rephraser to translate subtitle files to other languages. Maintain timing while translating text.
Batch processing. Process multiple subtitle files at once — convert formats, shift timing, or apply changes across an entire collection.
What You Can Do
Generate subtitles from video. Import a video file and generate subtitles automatically using Whisper AI. The output includes accurate timestamps and properly segmented subtitle blocks.
Add captions to YouTube videos. Create SRT or VTT subtitle files for YouTube upload. Generated subtitles include timing that matches your video exactly.
Edit existing subtitles. Import SRT or VTT files and edit text, timing, and formatting. Fix automated transcription errors, adjust timing offset, or rewrite subtitle text.
Convert subtitle formats. Convert between SRT and VTT formats with a single click. Handle encoding differences and format-specific features automatically.
Create multilingual subtitles. Generate subtitles in one language, then use the AI Rephraser to translate them. Export separate subtitle tracks for each language.
Extract text from subtitles. Convert SRT or VTT files to plain text, stripping timestamps and formatting. Useful for creating transcripts, scripts, or searchable text from existing subtitle files.
How It Works
Step 1: Create or import subtitles. Generate new subtitles from audio/video using Whisper AI, or import existing SRT/VTT files for editing.
Step 2: Edit and refine. Use the subtitle editor to correct text, adjust timing, split or merge blocks, and synchronize with your video. Preview subtitles against the video timeline.
Step 3: Transform. Translate subtitles to other languages, convert between formats, or batch-process multiple files with consistent settings.
Step 4: Export. Save subtitles in SRT, VTT, or plain text format. Files are ready for upload to video platforms or embedding in video files.
Offline Subtitle Creation
Subtitle files often accompany sensitive video content — corporate training videos, legal depositions, medical presentations, or unreleased creative work. SoundWorks generates and edits subtitles entirely on your device. Audio analysis, text generation, and file conversion all happen locally without any cloud dependency.
The only exception is if you choose to translate subtitles using the AI Rephraser, which communicates with ChatGPT or Claude through your own API key.
Frequently Asked Questions
What subtitle formats are supported? SoundWorks supports SRT (SubRip) and VTT (WebVTT) for both import and export. Plain text export is also available for creating transcripts from subtitle files.
Can I generate subtitles from any audio or video file? Yes. Any audio or video format supported by SoundWorks can be used for subtitle generation. This includes MP3, WAV, MP4, MKV, AVI, and dozens more.
How accurate are AI-generated subtitles? Accuracy depends on the Whisper model size and audio quality. The large-v3 model typically achieves over 95% accuracy on clear audio. You can review and correct any errors in the built-in editor.
Can I adjust subtitle timing globally? Yes. Subtitle Studio includes a timing offset tool that shifts all timestamps forward or backward by a specified amount. Useful when subtitles are slightly out of sync with the video.
Does it support right-to-left languages? SoundWorks generates text in whatever language Whisper detects. Right-to-left display depends on your video player and platform. The subtitle files themselves contain the text correctly.
Can I add styling to subtitles? VTT format supports basic styling (bold, italic, positioning). SRT format is plain text only. Subtitle Studio preserves existing styling when editing VTT files.
Is there a limit on file size or duration? No artificial limits. Processing time scales with audio duration and the Whisper model size you select. Longer files take proportionally longer to transcribe.