Audio Tracks
Method of specifying and selecting between multiple audio tracks. Useful for providing audio descriptions, director's commentary, additional languages, alternative takes, etc.
letter-spacing CSS property
Controls spacing between characters of text (i.e. "tracking" in typographical terms). Not to be confused with kerning.
Do Not Track API
API to allow the browser's Do Not Track setting to be queried via `navigator.doNotTrack`. Due to lack of adoption the Do Not Track specification was deprecated in 2018.
Video Tracks
Method of specifying and selecting between multiple video tracks. Useful for providing sign language tracks, burnt-in captions or subtitles, alternative camera angles, etc.
WebVTT - Web Video Text Tracks
Format for marking up text captions for multimedia resources.
imagecapture api: track
imagedecoder api: tracks
rtcpeerconnection api: `track` event
rtcrtpreceiver api: getcontributingsources: audio tracks supported
rtcrtpreceiver api: getcontributingsources: video tracks supported
rtcrtpreceiver api: getsynchronizationsources: audio tracks supported
rtcrtpreceiver api: getsynchronizationsources: video tracks supported
rtcrtpreceiver api: track
rtcrtpsender api: track
rtcstatsreport api: `inbound-rtp` stats: `trackidentifier` in 'inbound-rtp' stats
rtcstatsreport api: `media-source` stats: `trackidentifier` in 'media-source' stats
rtctrackevent api
rtctrackevent api: receiver
rtctrackevent api: `rtctrackevent()` constructor
rtctrackevent api: streams
rtctrackevent api: track
rtctrackevent api: transceiver
texttrack api
texttrackcue api
texttracklist api
texttrack api: id
texttrack api: kind
texttrack api: mode
trackevent api
trackevent api: track
trackevent api: `trackevent()` constructor
xrframe api: trackedanchors
css property: align-tracks
css property: grid-template-rows: animation of tracks
css property: justify-tracks
css selector: `::-moz-range-track`
css selector: ::-webkit-scrollbar-track
css selector: ::-webkit-scrollbar-track-piece
css selector: -webkit-slider-runnable-track
html element: link: rel: rel=preload: `as=track`
html element: track
html element: track: default
html element: track: kind
html element: track: kind: `kind='descriptions'`
html element: track: label
html element: track: src
html element: track: srclang
html element: track: src: `src` settable
headers http header: permissions-policy: xr-spatial-tracking
javascript built-in: promise: incumbent settings object tracking
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