Subtitle Quality Assurance Checklist

SRT file opens correctly in video players and editing software

Sequential numbering (1, 2, 3...) with no gaps or duplicates

Correct HH:MM:SS,mmm format with proper arrow spacing

Each subtitle block separated by exactly one blank line

UTF-8 encoding for special characters and accents

All spoken words accurately transcribed without omissions

Correct spelling, punctuation, and grammar throughout

Clear identification when multiple speakers or off-screen voices

Important audio cues described in brackets [MUSIC] [APPLAUSE]

Specialized vocabulary and proper nouns spelled correctly

Subtitles appear within ±1 second of speech onset

1.5-6 second duration range maintained for all subtitles

200-250 words per minute reading speed maintained

Minimum 250ms gaps between subtitle blocks

End time of one subtitle before start time of next

Meets Web Content Accessibility Guidelines requirements

32-42 characters per line, maximum 2 lines per subtitle

Clear, simple language appropriate for target audience

Tested across target platforms and devices