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DIY Workflows for Captioning and Transcription
Lily BondMarketing Manager3Play [email protected]
www.3playmedia.comtwitter: @3playmedia
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Ken PetriWeb Accessibility Center DirectorOhio State University
DIY Workflows for Captioning and Transcription
Ken PetriWeb Accessibility CenterThe Ohio State University
July 2015, 3Play Media Webinar
Our In-House Service
• Transcribe OSU (http://go.osu.edu/transcribe)• Run by GAA• Undergrads as staff transcribers (3-7)
• $ stay here!• Students benefit• Possibility of domain knowledge and easier personal contact
• OSU only• Cost: $60 per media hour transcription, $70 for captioned video
• Priced for break-even/cost recovery: 5hrs per 1hr media for transcript + 1hr review (+ 1hr for caption)
• Hours of media, since July 2014: 215 (1/3 captioned video)
Workflow: Toolkit
• See http://go.osu.edu/diy-captioning. (Yes, a bit Windows-centric…)• YouTube for transcription and timing of captions• Express Scribe for transcription of audio only (no timings)• Word/LibreOffice for “spell checking” and “chunking”• Subtitle Edit for fine tuning, translating, format transcoding• mkvmerge GUI + MkvToMP4 for “gluing” caption/subtitles, video, (and audio
description file) together• Any Video Converter (if you have to do an “open”/”burned in” caption
On a Mac?: Checkout Handbrake and iSubtitle
Workflow: Getting a transcript: Express Scribe
• We tend to use mostly for audio• Pro/pay version takes video• Keyboard hot keys (assignable)• Slows playback, minimal distortion• “Mini” player can be “on top,”
keeps keyboard shortcuts
Workflow: Getting a transcript: YouTube automatic• If auto captions have
decent text, downloadand strip timings
• Use Subtitle Edit to strip
Workflow: Getting a transcript: YouTube manual• “Pause video while
typing” option• Speed adjustable• Keyboard hotkeys for
play/pause and back 5 seconds
• Advice: Just transcribe.Don’t try to “chunk” yet.
• Consider a clipboardmanager for speakers.
Workflow: “Chunking”: MS Word helpsSettings to achieve a“chunk” in YouTube:• Courier New, 10.5 font• R/L margins, .32 inches
Workflow: “Chunking”: Text formatting • Line length: around 42 chars• 1 or 2 lines per chunk• Chunk and line as semantically
complete as reasonable• Speaker identifications• Sound effects
Workflow: Sync It Up
• Use YouTube. It’s magic!• Other possibilities?:
• Movie Captioner• MAGpie (crashy)
Workflow: Some words on audio description• Definition: “verbal depiction of key visual elements” in a video:
• Opening titles and on-screen text• Scenes and scene changes• Costumes/character appearance, including visible emotional state• Actions and gestures
• In self-produced video, work it into the main production, if possible• Typically an audio or secondary video track, but can be text (if a “rich”
transcript or, depending upon video player capabilities)• Production of audio: DIY’ers can use Audacity or commercial products such
as Adobe Audition or Sound Forge• Record discrete clips and then join with “silence” so that length is same as video
Workflow: “Gluing” the bits together: The bits• Caption (and subtitle) file(s)
• Export SRT, WebVTT, or .sbv from YouTube (or MAGpie, Movie Captioner)• Subtitle Edit can convert from any format to any other
• Video in MP4 (H.264 encoded) format• Secondary audio in MP3 format
Workflow: “Gluing”: For web
• You already have all the parts (except for the player, maybe)• They’ll stay separate
Workflow: “Gluing”: Muxing for stand-alone players1. mkvmerge GUI
to mux into .mkv2. MkvToMp4
to convert to .m4v
Workflow: “Gluing”: “Burning” in
• Many solutions, but “Any Video Converter” seems the most reliable
Workflow: Publishing: What goes where?• Web
• HTML5 <video>/<audio> container• An accessible player: http://go.osu.edu/player-matrix
• File-based or iTunes• All-in-one MP4/M4V file
• PDF or PowerPoint(?)• “Open” / “Burned-in” caption
Questions / Feedback
• Ken Petri ([email protected])• Sites:
• http://go.osu.edu/diy-captioning• http://go.osu.edu/transcribe• http://go.osu.edu/player-matrix
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Ken Petri
Web Accessibility Center Director
Ohio State University
Lily Bond
Marketing Manager
3Play Media
Q&A Upcoming Webinars:
August 6: Quick Start to Captioning
August 27: HTML5 Video Accessibility: Updates, Features, & Guidelines
October 8: 10 Tips for Creating Accessible Online Course Content
You can register for these free webinars at: www.3playmedia.com/webinars/
A recording of this webinar will be available for replay