Adding a note on duration and TTS

[iherman]

Implements the proposal in #2007

Fix #2007

[iherman]

The issue was discussed in a meeting on 2022-03-03

List of resolutions:

• Resolution No. 1: Merge PR 2027 after wording is confirmed, and close issue 2007.

View the transcript

1. 'duration' value in MO and TTS (issue epub-specs#2007)

See github issue epub-specs#2007.

Dave Cramer: Duration values in TTS.

See github pull request epub-specs#2027.

Dave Cramer: see issue and pull request.
… historically we required a duration value for MO, but there is a question about what happens when there is no accompanying audio.
… which means TTS will render the paragraph.
… We are acknowledging it isn't common, but we need to cover it in the spec.
… Matt, summary?.

Matt Garrish: Not much to say, but the spec is a little wordy/redundant.
… I suggest shortening, but overall am happy.

Dave Cramer: Some comment about making the duration a 'should', but I am against that.

Matt Garrish: agreed. I am not even sure how common TTS is.

Dave Cramer: And you won't have MO if you are relying on TTS anyway.

Wendy Reid: Using MO for TTS is pretty much overkill.
… European A11y act requires TTS in RSes, so TTS will be more common.

Matt Garrish: We did TTS previously, but not as MO. Seems like this is more theoretical than anything. Happy to leave as is.

Murata Makoto: DAISY in Japan has MO always, but it is pre-recorded.

Dave Cramer: We will clean up the PR and close the issue.

Proposed resolution: Merge PR 2027 after wording is confirmed, and close issue 2007. (Wendy Reid)

Matt Garrish: +1.

Dave Cramer: +1.

Toshiaki Koike: +1.

Wendy Reid: +1.

Shinya Takami (高見真也): +1.

Masakazu Kitahara: +1.

Zheng Xu (徐征): +1.

Brady Duga: +1.

Dan Lazin: +1.

Murata Makoto: +1.

Resolution #1: Merge PR 2027 after wording is confirmed, and close issue 2007.

[iherman]

Merging per WG resolution.