Subtitles and Caption Introduction to Caption 4

Question 1

What is the WebVTT (.vtt) caption format primarily designed for?

Accepted Answer

HTML5 web video playback

Answer

WebVTT (Web Video Text Tracks) was created specifically for use with the HTML5 <track> element to display captions in web browsers.

Question 2

A captioner is unsure whether to caption an aside spoken by an off-screen narrator. Which principle guides this decision?

Accepted Answer

All audio content accessible to a hearing viewer should be captioned

Answer

Captioning best practice requires that any audio a hearing viewer can perceive be made accessible through captions, including off-screen narration.

Question 3

How are non-speech sounds such as a doorbell or explosion typically formatted in professional captions?

Accepted Answer

They are written in uppercase or title case inside square brackets

Answer

Non-speech sounds are conventionally written in square brackets using uppercase or title case, such as [DOORBELL RINGS] or [Explosion], to distinguish them from dialogue.

Question 4

What is the key difference between SDH (Subtitles for the Deaf and Hard of Hearing) and standard subtitles?

Accepted Answer

SDH includes non-speech audio descriptions and speaker IDs; standard subtitles only translate dialogue

Answer

SDH adds sound effect descriptions and speaker identification labels on top of translated dialogue, making it accessible to deaf viewers unlike standard subtitle tracks.

Question 5

Line 21 of the vertical blanking interval (VBI) is historically significant in captioning because:

Accepted Answer

It was the analog broadcast channel used to carry closed caption data in NTSC video

Answer

Line 21 of the NTSC VBI carried encoded caption data that TV decoder chips would extract and display, forming the backbone of analog closed captioning.

Subtitles and Caption Practice Test

Subtitles and Caption Practice Test

Subtitles and Caption Introduction to Caption 4