RE: [EXTERNAL] Possible addition to SAUR on minimal frame rates

To clarify the status of this work:
I’ve proposed text for inclusion in Section 1.2 that satisfies Steve’s description below.
Steve is (as I understand it) working on text for section 2.2.3 (Caption Synchronization Threshold), which we’ll add to the same branch.
At that point, if all are agreeable, we’ll merge the changes.
I think this accords with what was discussed at last week’s meeting, and I’m sure participants will comment in due course if this is not the case.

From: White, Jason J <jjwhite@ets.org>
Sent: Tuesday, 8 March 2022 15:31
To: Noble, Stephen <steve.noble@pearson.com>; RQTF <public-rqtf@w3.org>
Subject: RE: [EXTERNAL] Possible addition to SAUR on minimal frame rates

Thank you, Steve – that proposal seems very reasonable to me.

From: Noble, Stephen <steve.noble@pearson.com<mailto:steve.noble@pearson.com>>
Sent: Tuesday, 8 March 2022 15:29
To: White, Jason J <jjwhite@ets.org<mailto:jjwhite@ets.org>>; RQTF <public-rqtf@w3.org<mailto:public-rqtf@w3.org>>
Subject: Re: [EXTERNAL] Possible addition to SAUR on minimal frame rates

Hi Jason,

As far as where the note about frame rate should go, as Raja also alludes the frame rate has a bearing on the effectiveness of sign language translation as well as captions. So the note about frame rate more generally and the potential impact overall (along with a cross reference to the RAUR (RTC Accessibility User Requirements) should probably go somewhere in Section 1.2 Media Synchronization and Accessibility. Then, I can add the specific language about the impact on caption synchronization at the end of 2.2.3 Caption Synchronization Thresholds.

How does that sound?

--Steve






Steve Noble
Instructional Designer, Accessibility
Psychometrics & Testing Services

Pearson
502 969 3088
steve.noble@pearson.com<mailto:steve.noble@pearson.com>
[https://ci3.googleusercontent.com/proxy/xFjftXlwMzpdFeTtDgc4_IwyMYm8ThtQHIsgElkS8fyiCO2M7ZM0WaO7r2uy-bmKAe5S2sIcg7d-mwbD4ArkJhyafHke-SgJ2ui8DoGoBhZw4YIyWeK3LUozNMwBff4JR2tdu8nZ2fvoNvkkA06KNw9-s3P9UvYsHSTphHss6X0=s0-d-e1-ft#http://accessibility4school.pearson.com/access/4c49fe02-e204-46b4-b6f0-82f5a3f159cb/pearson-accessibility.jpg]

________________________________
From: White, Jason J <jjwhite@ets.org<mailto:jjwhite@ets.org>>
Sent: Tuesday, March 8, 2022 9:02 AM
To: Noble, Stephen <steve.noble@pearson.com<mailto:steve.noble@pearson.com>>; RQTF <public-rqtf@w3.org<mailto:public-rqtf@w3.org>>
Subject: RE: [EXTERNAL] Possible addition to SAUR on minimal frame rates


By way of additional comment:

Where in the Synchronization Accessibility User Requirements would you prefer to add a note on frame rate, with a cross-reference to XR?

Perhaps your longer text on frame rates could be considered later for inclusion in the Media Accessibility User Requirements – if the APA Working Group decides at some stage to update that document.





From: Noble, Stephen <steve.noble@pearson.com<mailto:steve.noble@pearson.com>>
Sent: Thursday, 3 March 2022 9:56
To: White, Jason J <jjwhite@ets.org<mailto:jjwhite@ets.org>>; RQTF <public-rqtf@w3.org<mailto:public-rqtf@w3.org>>
Subject: Re: [EXTERNAL] Possible addition to SAUR on minimal frame rates



Thanks, Jason. It is clear that video frame rates impact accessibility. For instance, as the frame rate diminishes, the effectiveness of lip-reading drops, and eventually becomes practically impossible at low frame rates. There are studies we could point to on that end. But, as you alluded, the question is how do we draw the intersect to synchronization, since that is the focus of the SAUR. So perhaps we should simply not use the text I wrote, and instead a passing reference to the impact of frame rates along with a pointer to the RTC Accessibility User Requirements at Section 6.1 https://www.w3.org/TR/raur/#deaf-users-video-resolution-and-frame-rates<https://nam10.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.w3.org%2FTR%2Fraur%2F%23deaf-users-video-resolution-and-frame-rates&data=04%7C01%7Cjjwhite%40ets.org%7C7abb97fa62cf4078900308da01429ae0%7C0ba6e9b760b34fae92f37e6ddd9e9b65%7C0%7C0%7C637823682865680791%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000&sdata=hA2dHBopK0DhH0VGS5kgKaQlX9GtUGdc8hi8gw2iOkg%3D&reserved=0>. Then, in the SAUR, we would only address the issues directly connected to synchronization, such as in the case of caption synchronization. In that use case, we could add something like this: "When bandwidth issues and other technical limitations cause frame rates to drop below the recommended level, it is advised that the video streaming and remote meeting platform providers should match the caption timing as referenced by the audio rather than the video to reduce temporal display errors." I don't know if there are other recommendations, we can add beyond that which are directly connected to synchronization.



--Steve









Steve Noble

Instructional Designer, Accessibility
Psychometrics & Testing Services

Pearson

502 969 3088
steve.noble@pearson.com<mailto:steve.noble@pearson.com>

[https://ci3.googleusercontent.com/proxy/xFjftXlwMzpdFeTtDgc4_IwyMYm8ThtQHIsgElkS8fyiCO2M7ZM0WaO7r2uy-bmKAe5S2sIcg7d-mwbD4ArkJhyafHke-SgJ2ui8DoGoBhZw4YIyWeK3LUozNMwBff4JR2tdu8nZ2fvoNvkkA06KNw9-s3P9UvYsHSTphHss6X0=s0-d-e1-ft#http://accessibility4school.pearson.com/access/4c49fe02-e204-46b4-b6f0-82f5a3f159cb/pearson-accessibility.jpg]

________________________________

From: White, Jason J <jjwhite@ets.org<mailto:jjwhite@ets.org>>
Sent: Thursday, March 3, 2022 9:16 AM
To: White, Jason J <jjwhite@ets.org<mailto:jjwhite@ets.org>>; Noble, Stephen <steve.noble@pearson.com<mailto:steve.noble@pearson.com>>; RQTF <public-rqtf@w3.org<mailto:public-rqtf@w3.org>>
Subject: RE: [EXTERNAL] Possible addition to SAUR on minimal frame rates



With apologies for the additional e-mail:

Should anything be said about the relationship between video frame rate and synchronization? Otherwise, it isn’t clear that there is a connection, or indeed what the connection is. A few sentences that make the link would be helpful, it seems to me.



From: White, Jason J <jjwhite@ets.org<mailto:jjwhite@ets.org>>
Sent: Thursday, 3 March 2022 9:12
To: Noble, Stephen <steve.noble@pearson.com<mailto:steve.noble@pearson.com>>; RQTF <public-rqtf@w3.org<mailto:public-rqtf@w3.org>>
Subject: RE: [EXTERNAL] Possible addition to SAUR on minimal frame rates







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