
Broadcast Caption Formatter & QA Assistant
Generate, format, and QA broadcast captions for FCC compliance and accessibility
What You Can Do
You can create properly formatted broadcast captions that meet FCC requirements, convert between multiple caption formats (SRT, VTT, CEA-608, WebVTT), and run comprehensive quality assurance checks to ensure timing accuracy, speaker identification, and accessibility compliance. Get automated QA reports that identify missing captions, timing errors, format violations, and compliance issues before delivery.
Features
Convert captions between SRT, VTT, WebVTT, CEA-608, SAMI, and other broadcast-standard formats with automatic timestamp adjustment and encoding verification
Verify compliance with FCC rules including 99%+ accuracy requirement, timing within 100ms of audio, speaker identification, dialogue completeness, and emergency alert system (EAS) formatting
Detect audio-video sync drift, analyze caption duration against reading speed (rule of 8 words per 5 seconds), and provide frame-accurate correction recommendations
Check WCAG 2.1 Level AA compliance with music descriptions, sound effect labels, speaker identification, emotional tone indicators, and hearing-impaired accessibility completeness
Produce detailed compliance reports in CSV, JSON, or formatted text with line-by-line errors, severity ratings, and specific corrections needed for each issue
Process multiple caption files simultaneously, apply consistent formatting rules across episodes or seasons, and generate consolidated compliance summary
Access pre-built formatting templates for live broadcasts, pre-recorded content, sports programming, news segments, and emergency alert system captions
Automatically flag missing captions, text encoding errors, overlapping timecodes, malformed timestamps, orphaned cues, and provide inline fix suggestions
Example Output
FCC Compliance Report
✓ Accuracy: 99.2% (Requirement: ≥99%) ✓ Timing: 87/90 cues within 100ms (96.7% pass) ⚠ Coverage: 2 silent scenes missing descriptions ✗ Speaker ID: 3 lines lack speaker labels
Timing Issues Found:
- Line 42: "The quick brown fox..." — 1,250ms duration (exceeds 8 words/5s rule)
- Line 67: Sync drift +245ms from audio reference
Recommended Corrections:
OLD: 00:45:123 --> 00:46:373
NEW: 00:45:123 --> 00:46:200
Accessibility Gaps:
- [MUSIC] Emotional tone missing in intro sequence
- [SOUND] Thunder crash at 2:15 not labeled
- [SPEAKER] 5 lines need identification labels
What's Included
- Format Converter Module: Convert between SRT, VTT, WebVTT, CEA-608, SAMI, and broadcast-standard formats with automatic timestamp normalization and encoding validation
- FCC Compliance Validator: Check accuracy percentage, timing tolerance, speaker identification, dialogue completeness, emergency alert system rules, and broadcast-specific requirements
- Accessibility Analyzer: Verify WCAG 2.1 AA compliance including music descriptions, sound effect labels, speaker identification, emotional tone indicators, and hearing-impaired accessibility
- Batch QA Engine: Process multiple files with consistent rules, track compliance across episodes or seasons, and generate consolidated reports with per-file and aggregate metrics
- Caption Templates: Pre-built formatting rules and standards for live news broadcasts, sports, scripted content, music performances, emergency alerts, and on-screen text
- QA Report Generator: Create detailed reports in CSV, JSON, or markdown with line-by-line errors, severity levels, before/after comparisons, and actionable remediation steps
Who It's For
- Broadcast Engineers & Technical Directors
- Caption Editors & Subtitle Specialists
- Accessibility & Compliance Coordinators
- Video Producers & Content Managers
- Closed Captioning Service Providers
Best For
- FCC Compliance Verification for Live & Pre-Recorded Broadcasts
- Multi-Format Caption Conversion & Standardization
- Timing Accuracy & Audio Synchronization Quality Checks
- Accessibility Compliance Audits (WCAG, ADA)
- Batch Processing & Quality Assurance Across Multiple Episodes






