Hi folks,
In looking at how to harmonize with ebook metadata, a hole we have is in
identifying that a resource has been enhanced for TTS playback using any of PLS
lexicons, SSML and/or CSS3 Speech.
ONIX code list 196 has a value for this, so should we also include an
accessibilityFeature value “ttsMarkup”? (And that could be refined as /pls,
/ssml or /css3speech if you want to be specific.)
All of these tts-enhancement technologies are available for web content
generally, so the use is not specific to ebooks.
Matt