Advanced Subtitle Extraction Techniques for Professional Video Editors

As a professional video editor, you're constantly looking for ways to streamline your workflow and improve the quality of your deliverables. Subtitle extraction is one area where advanced techniques can save you hours of work while enhancing the accessibility and reach of your content.

Beyond Basic Extraction: Professional Approaches

While basic subtitle extraction works for simple projects, professional workflows demand more sophisticated approaches:

1. Multi-Region Extraction

For videos with subtitles appearing in different screen positions (common in documentaries and news broadcasts), you need multi-region extraction:

// Example of multi-region subtitle extraction
const regions = [
  { name: 'lower-third', y1: 0.8, y2: 0.95, x1: 0.1, x2: 0.9 },
  { name: 'upper-third', y1: 0.1, y2: 0.25, x1: 0.1, x2: 0.9 },
  { name: 'full-screen', y1: 0.4, y2: 0.6, x1: 0.05, x2: 0.95 }
];

const extractionResults = await SubExtractor.extractFromRegions(videoFile, {
  regions,
  mergeStrategy: 'time-based',
  deduplication: true
});

// Results contain subtitles from all regions, properly timed and deduplicated