Speakers Identified In Captions
Group: images-and-media • Guideline: captions
Summary in Plain English
Where a video has several speakers, the captions make clear who is speaking - except where identity is deliberately hidden or already clear from context.
Why It Matters
Captions strip out voice, accent and volume, which is how hearing viewers tell speakers apart. Without attribution, a conversation becomes a block of text.
Scope: When This Applies
The draft's own conditions, quoted from guidelines/groups/images-and-media/captions/speakers-identified-in-captions.md.
Applies when
- There are multiple speakers in the video.
Except when
- The speaker has a hidden identity as part of narrative structure.
- Identity is identifiable within the context of use.
Examples from the Draft
Worked examples the W3C editors wrote into the provision itself, not examples invented here.
Initially using “Maya Angelou” within the context of a story regarding poetry and then using “Angelou”.
Test Procedure from the W3C Draft
Quoted from the provision's informative document, informative/guidelines/images-and-media/captions/speakers-identified-in-captions.md. It is the group's own procedure, not an editorial testing guide.
Consistent speaker name in captions
Procedure
For each caption:
- Check that each speaker in the audio or video is consistently identified.
Expected results
- #1 is true.
W3C Working Group Status
The draft records no open editors' notes on this provision.
W3C Threads on This Provision
4 GitHub threads carrying 13 comments, fetched from w3c/wcag3 by the tracker. Titles, numbers and states are the threads' own.
What the Argument Is About
Whether speaker identification in captions should be required at all, and whether naming the speaker in text is the mechanism or just a North-American assumption.
Positions taken in the thread
Understanding a conversation often depends on who said what, and without the who a story or issue becomes hard to follow — like reading a playscript with no characters identified. Speaks from experience of face-blindness: usually identifies people by voice, so on a muted device or with a hearing impairment, following a conversation between people who look similar is very difficult. Compares captions carrying names to a Teams meeting, where every participant's name is visible, versus an in-person one. Extends the same argument to blind users reading captions or a transcript via braille.
Identifying a speaker by where the caption is placed on screen does not help someone with face-blindness. Finnberrys replied that having the captions identify speakers with a name helps in knowing who is speaking, comparing it to names being visible in a Teams meeting.
The discussion is North-America-centric in assuming the identifier is text. The BBC recommends colours to distinguish speakers, and the practice is common in continental Europe. Explicitly does not claim colour is better than text, or even that it is accessible — flags that it might fail Use of Color — but argues the provision needs international context before it settles on a mechanism.
In #512: in a live meeting or its recording, several people sharing a room are grouped as a room rather than identified individually, so the provision should say it is limited to speakers who are systematically identifiable. Second case is a video with one speaker who introduces themselves at the start, where announcing the speaker every time is repetitive. Concludes the provision needs more work or should remain supplemental for now.
In #748: the provision applies only when there are multiple speakers in the video, which should be generalised to media so it covers audio without video, video without audio, and video with audio.
In #472: each note under the foundational wording — full name then part of name, hidden identity as part of narrative structure, recognisable position within the context of use — needs a concrete example. The only example the provision carries is the Maya Angelou to Angelou shortening.
Agreed
- The user need reaches beyond deafness — face-blindness, braille readers and muted-device situations all appear in Finnberrys's case and nobody disputed any of them.
- Nothing distinguishes the captions version of this provision from the transcripts or audio-description versions; all four threads are labelled across all three at once.
Still open
- Whether speaker identification is required at all. WilcoFiers's opening question in #23 asks exactly this and Finnberrys is the only person who answered it directly.
- Whether colour or caption position count as identification, and how that squares with Use of Color — mitchellevan raised it and it has not been taken up.
- Whether the provision should be limited to systematically identifiable speakers, and how to handle a single self-introducing speaker — sydneycolemanfromgoogle, #512.
- Whether "video" becomes "media" in the applies-when clause — ashleemboyer, #748.
- How missing speaker identification would be weighted in any caption accuracy grading — one strand of WilcoFiers's accuracy question in #23, covered under Captions adjustable.
Note
Three of the four threads here — #472, #512 and #748, filed between December 2025 and July 2026 — are issue bodies with no replies at all. The only actual exchange is in #23, which this provision shares with Speakers identified in transcripts and with Captions adjustable.
- #23 Create Audio and video alternatives guideline open 13 comments · updated 2026-09-11
- #472 Need concrete examples - Speakers identified (Core) open 0 comments · updated 2026-09-10
- #512 [Speakers identified] lack of clarity for user who can’t or choose not to be identified open 0 comments · updated 2026-09-10
- #748 "Speakers identified" should apply beyond video content open 0 comments · updated 2026-09-11
WCAG 2.2 Criteria That Map Here
From this site's reviewed WCAG 2.2 → WCAG 3 map. The map is an interpretation, not a W3C mapping: W3C has not published one yet.
No mapping recorded. No WCAG 2.2 criterion in this site's map is recorded as a predecessor of this provision.
Related WCAG 2.2 criteria
On a neighbouring subject, but this provision doesn't replace them.
W3C Raw Source Text
Verbatim from guidelines/groups/images-and-media/captions/speakers-identified-in-captions.md · informative document: informative/guidelines/images-and-media/captions/speakers-identified-in-captions.md
Speakers are identified understandably within all captions. :::applies-when - There are multiple speakers in the video. ::: :::except-when - The speaker has a hidden identity as part of narrative structure. - Identity is identifiable within the context of use. ::: :::example Initially using "Maya Angelou" within the context of a story regarding poetry and then using "Angelou". :::