Some video examples should have audio, but they do not [1ec09b]

[WilcoFiers]

I haven't checked them all but at least passed example 1 and 3 should have audio. But this does not seem to be the case:
https://act-rules.github.io/rules/1ec09b

[ajanec01]

I get audio on my iPhone. I think that falls under the accessibility support section. I had the same concern for video element visual content has audio description, as in, it did not want to work in Firefox and Chrome on desktop.

[WilcoFiers]

Interesting! But then is it a problem with one of the source files, or is it in the browser?

[ajanec01]

My suspicion- browsers. Maybe it would be good to park those rules (meaning not to publish as proposed) until we test it thoroughly across browsers and write a more descriptive accessibility support section?

[kengdoj]

I can hear audio in Passed 1 and 3 in Edge. (But not in Chrome.)

I hear audio in Passed Ex 2, but do not hear audio descriptions. Same for Failed Ex 2.

[tbostic32]

Currently investigating this, after a bit of digging, it seems that the rabbit video file that works uses the audio codec MPEG AAC Audio while the others that are failing use A52 (AC3) Audio.

I haven't had a chance to determine all of the files that have this, but I was able to confirm that converting to the MPEG AAC Audio format does fix the issue at least for Firefox. .

[tbostic32]

See the pull request above. One thing I also noticed was that several of the videos were 720p while others were just 240p or something like that.