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and will be spoken. (To be sure to suppress rendering of an element
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and its descendants, use the 'display' property [[CSS3BOX]]).
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<pclass="issue">ISSUE: 'speak:none' is arguably unnecessary, as it can be fully realized using 'display:none' and because the function of 'speak' is primarily to specify *how* to speak text content, not to control *if* it should be spoken. There is also a concern about accessibility good practices, in particular with regards to whether this specification should allow authors to "hide" text in the aural dimension, when it is visible on the visual canvas. Note that "display:none" is different than "visibility:hidden". The former effectively 'deactivates' an element (so to speak) whereas the latter is more similar to "voice-volume:0%". In other words, "visibility:hidden" preserves the visual space that the element would normally occupy if it was visible (resulting in an empty or transparent area that still takes part in the page layout), and conversely "voice-volume:0%" results in an audio silence lasting as long as the duration of non-silent TTS playback.
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<pclass="issue" id="issue-speak_none">ISSUE: 'speak:none' is arguably unnecessary, as it can be fully realized using 'display:none'. The function of 'speak' should primarily be to specify *how* to speak text content, not to control *if* it should be spoken. There is also a concern about accessibility good practices, in particular with regards to whether this specification should allow authors to "hide" text in the aural dimension, when it is actually visible on the graphical canvas. Note that "display:none" is different than "visibility:hidden". The former effectively 'deactivates' an element (so to speak) whereas the latter is more similar to "voice-volume:0%". In other words, "visibility:hidden" preserves the visual space that the element would normally occupy if it was visible (resulting in an empty or transparent area that still takes part in the page layout), and conversely "voice-volume:0%" results in an audio silence lasting as long as the duration of non-silent TTS playback.
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There is a <ahref="http://lists.w3.org/Archives/Public/www-style/2011Jan/0355.html">related discussion</a> on the public mailing-list.
<pclass="issue">ISSUE: in SSML, the 'mark' element acts as a destination anchor
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<pclass="issue"id="issue-mark">ISSUE: in SSML, the 'mark' element acts as a destination anchor
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and as a mean to raise an event when the point is reached within the speech stream.
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This functionality arguably isn't purely of stylistic nature, but this may be required but for the sake of covering SSML's feature-set. There is a <ahref="http://lists.w3.org/Archives/Public/www-style/2010Dec/0239.html">related discussion</a> on the public mailing-list.
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This functionality arguably isn't purely of stylistic nature (if at all), so it is judged "at risk" of being removed from this specification draft.
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There is a <ahref="http://lists.w3.org/Archives/Public/www-style/2010Dec/0239.html">related discussion</a> on the public mailing-list.
<pclass="issue" id="issue-phonemes">ISSUE: the 'phonemes' property covers functionality that is arguably not strictly related to styling (it relates to the broader aspect of pronunciation lexicons).
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There is a <ahref="http://lists.w3.org/Archives/Public/www-style/2011Jan/0248.html">related discussion</a> on the public mailing-list.
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