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[whatwg] audio vs. video

From: Benjamin West <bewest@gmail.com>
Date: Sat, 17 Mar 2007 20:12:47 -0800
Message-ID: <8ad71be30703172112n53258f35me56bc3685956894a@mail.gmail.com>
On 3/5/07, H?kon Wium Lie <howcome at opera.com> wrote:
> Also sprach Elliotte Harold:
>
>  > If we add a video element, should we for the same reasons add an audio
>  > element?
>
> Yes.
>

I agree.  I was thinking about what Christoph P?per said, in <video>
element proposal:
On 3/17/07, Christoph P?per <christoph.paeper at crissov.de> wrote:
> |video| should be used to embed audio files and streams, too, because in
> practice it is a superset.

* Should users be given a control to manipulate embedded audio?
* If using Audio(), who's responsibility is it to provide that
control/user interface?  UA? Authors?

I don't have any research, but I would suspect that in practice, it
would be beneficial to encourage the presentation of a UI for audio.
Just because the medium isn't visual doesn't mean users don't need to
see a control.  Typically, when web pages embed audio, there is a
control somewhere on the page for playing, stopping, pausing,
rewinding, and the features increase from there.  If end users can't
shut off the music embedded in a web page, I would consider that a
problem.  So, since it's important to actually show a visible UI, and
since the location of that control in the document is important, there
should probably be an <audio> element, or allow <video> to also play
audio.

Are there any usability or accessibility guidelines we're following
that would mandate providing some level of playback/volume controls
over multimedia?

Does anyone have research on how many instances of embedded media on
the web offer some sort of visible control?

I don't think any of this is an argument for introducing a <media>
element, nor for extending <object>.  If there were a newly named
element to support both video and audio, I would not expect it to be
called media, but perhaps something like "playback", because the
controls and authoring intent appear pretty similar to me.

-Ben West
Received on Saturday, 17 March 2007 21:12:47 UTC

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