3 vs KF 8 Accessibility in eBook Formats Iris Amelia Febres MA FW Media eBook Developer Future Publishing amp Accessibility Conference Copenhagen Denmark June 13 2013 cph13 ID: 409260
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Slide1
EPUB 3 vs. KF8
Accessibility in eBook Formats
Iris Amelia
Febres
,
M.A.
F+W Media, eBook Developer
Future Publishing & Accessibility Conference
Copenhagen, Denmark
June 13, 2013
#cph13 • @
epubpupil
Slide deck:
irisamelia.com
/
newpubcph
/
presentation.pptxSlide2
OverviewWhat are EPUB 3 and KF8?How does each address accessibility within its format?What are strategies we can implement when we create (accessible) ebooks
?Slide3
eBooks: Where Are We Now?ProsSignificant progress with formatsDevices are intuitive
Standards are evolving (specifications)Embracing the possibleSales numbers of ebooks — worth the investmentSlide4
eBooks: Where Are We Now?ConsSplintering of formats (proprietary choices)
Splintering of devices (and a [supposed] move away from dedicated e-readers)Catching up to technologyExpensive (time & money)Slide5
What is accessibility?Two definitionsAssistance specifically for the impaired
ADADAISY APKIncreasing compatibility for usersFlexible formattingSemantic markupDRMSlide6
EPUB (EPUB 3)The newest specification of the EPUB format (IDPF)Harnesses HTML5 and CSS3 to render content dynamically, fully utilizing EPUB’s biggest strength:
reflowEmbracing open standardsEncouraged as the standard for ebooks today
See:
Readium
FoundationSlide7
Features in EPUB 3Audio/video capabilities
Text-to-speechMathML and SVG supportNavigation changesRobust metadataSlide8
Accessibility in EPUB 3Specification built with accessibility in mindPart IV of the EPUB 3 overview
http://www.idpf.org/epub/30/spec/epub30-overview.html#sec-accessibilityValidation contingent on accessibility options
Epubcheck
3.0
DAISY specs included
Audial/media overlays (DAISY Digital Talking Books)Slide9
Caveats in EPUB 3 re: accessibility Images and alt textThe
“alt” attribute within an <img
>
tag is required for EPUB validation
However,
it can be empty!Slide10
Source:
http://www.rnib.org.uk
/
Slide11Slide12
Caveats in EPUB 3 re: accessibility Text-to-speech/Read aloudWe have opportunities to create
ebooks with text-to-speech/read-aloud functionality (popular in children’s books)However, the learning curve is steep!Slide13
<smil xmlns="http://www.w3.org/ns/SMIL"
version="3.0"> <body> <par
id
="par1">
<
text
src
="chapter1.xhtml#sentence1"/>
<audio
src
="chapter1_audio.mp3"
clipBegin
="0s"
clipEnd
="10s"/>
</par>
<par
id
="par2">
<
text
src
="chapter1.xhtml#sentence2"/>
<audio
src
="chapter1_audio.mp3"
clipBegin
="10s"
clipEnd
="20s"/>
</par>
<par
id
="par3">
<text src="chapter1.xhtml#sentence3"/> <audio src="chapter1_audio.mp3" clipBegin="20s" clipEnd="30s"/> </par> </body></smil>
Source: EPUB Media Overlays 3.0 (sec. 3.1) —IDPF
S
ynchronized
M
ultimedia
I
ntegration
L
anguage
(SMIL)Slide14
<smil xmlns="http://www.w3.org/ns/SMIL"
version="3.0"> <body> <par
id
="par1">
<
text
src
="chapter1.xhtml#sentence1"/>
<audio
src
="chapter1_audio.mp3"
clipBegin
="0s"
clipEnd
="10s"/>
</par>
<par
id
="par2">
<
text
src
="chapter1.xhtml#sentence2"/>
<audio
src
="chapter1_audio.mp3"
clipBegin
="10s"
clipEnd
="20s"/>
</par> <par id="par3"> <text
src="chapter1.xhtml#sentence3"/> <audio
src
="chapter1_audio.mp3" clipBegin="20s" clipEnd="30s"/> </par> </body></smil>
Source: EPUB Media Overlays 3.0 (sec. 3.1) —IDPF
S
ynchronized
M
ultimedia
I
ntegration
L
anguage
(SMIL)Slide15
Caveats in EPUB 3 re: accessibility These features depend on the deviceEPUB 3 is primarily supported by
Apple iPad (expensive!)Kobo iOS/Android apps (read-aloud)
Support is limited in other spots…
but we’re getting there!
Readium
Foundation
See: BISG Platform GridSlide16Slide17
Kindle Format 8 (KF8)Successor to MOBI7HTML5 vs. HTML3
DocumentationAmazon Kindle Publishing Guidelineshttp://wiki.mobileread.com/wiki/
MOBI
(unofficial)
Updated frequently, a bible for developers
Specific to Amazon devices/apps
On
eInk
devices and tabletsSlide18
Features in KF8Updated FormattingBuilt on HTML5 and CSS3 support
Font embedding/text styling (alignment, colors, etc.)Fixed layout (proprietary)SVG supportSlide19
Accessibility in KF8Main feature: Backward compatibility on older devicesEmphasis on
Wide marginsMagnification features Children’s books and comicsDocumentation not as focusedAccessibility opportunities specifically stem from HTML5 and CSS3
Audio and video embedding
Additionally: Kindle for PC Accessibility PluginSlide20
Caveats in KF8 re: accessibility Text-to-speech feature for the Kindle for PC accessibility plugin requires an external screen reader for use
Windows PC onlySlide21
Caveats in KF8 re: accessibility These features depend on the deviceKF8 is
primarily only supported byKindle Fire (not as pricey as Apple, but…)Optimal
Kindle
Paperwhite
(
eInk
— more limited; e.g., no audio)
Amazon Kindle appsSlide22Slide23
By creating accessible EPUB files, we essentially create accessible Kindle files.
However, the devices hold the power. In other words…Formats can do
only so much!Slide24
Strategies & PracticesAim for reflowAvoid info-as-image — i.e., tables should be in
HTMLThink of your reader and what they can doThink of your content and who is consuming it
Always QA your work
Talk to your outsourcer(s) and develop relationships
The key is
awarenessSlide25Slide26
Recommended ReadingEPUB 3: Best Practices by Matt Garrish (@
MattGarrish)Readmill #eprdctn reading groupLiz Castro’s EPUB texts (@
LizCastro
)
EPUB Straight to the Point
Read Aloud EPUB for
iBooks
Audio and Video in EPUB (
Miniguide
)
Fixed Layout EPUBs for iPad and iPhone (Miniguide)
EPUB 3 book: Coming Soon!
Specifications (grab some coffee)
EPUB 2.1 and EPUB 3.0
DAISYSlide27
Questions? Say hello!Twitter: @
epubpupil#eprdctn — all about ebook development & production, troubleshooting … counseling
LinkedIn:
linkedin.com
/in/
irisamelia
Email:
iris@irisamelia.com