ISSUE-2069: Consider treating audio separately to graphics

audibility

Consider treating audio separately to graphics

State:
RAISED
Product:
SVG 2
Raised by:
Anthony Grasso
Opened on:
2008-09-24
Description:
This relates to the effect 'visibility' has on audio.

A change was made to SVG Tiny 1.2 (ACTION-2207) in relation to the email sent by Niklas [1] regarding the test media-audio-212-t.svg.

We should consider treating audio separately to graphical elements for future versions of SVG. I've thought of three possibilities to approach this issue.


1) Introduce an audibility property

audibility
value: audible | silent | inherit
initial: audible
applies to: media elements

'audible' - The current graphics or media element shall be audible.
'silent' - The current graphics or media element shall be inaudible regardless of the value of 'audio-level'.



2) Introduce an audibility property similar to (1) but replaces the 'audio-level' property as well

audibility
value: <number> | silent | inherit
initial: 1.0
applies to: media elements



3) Introduce a playability property that replaces the visibility property

playability
value: visible-audible | visible-silent | hidden-audible | hidden-silent | inherit
initial: all
applies to: graphics and media elements

'visible-audible' - The current graphics or media element shall be visible and audible.
'visible-silent' - The current graphics or media element shall be visible only. If media or graphic contains audio, the audio component must be audible.
'hidden-audible' - The current graphics or media element shall be inivisble only. If the media or graphic contains audio, the audio component must be audible.
'hiddent-silent' - The current graphics or media element shall be both inivisble and inaudible.



[1] http://lists.w3.org/Archives/Public/public-svg-wg/2008JulSep/0326.html
Related Actions Items:
No related actions
Related emails:
  1. Minutes, 20 April SVG telcon (from chris@w3.org on 2012-04-20)
  2. ISSUE-2069 (audibility): Consider treating audio separately to graphics [SVG Core 2.0] (from sysbot+tracker@w3.org on 2008-09-24)

Related notes:

No additional notes.

Changelog:

Created issue 'Consider treating audio separately to graphics' nickname audibility owned by Anthony Grasso on product SVG Core 2.0, description 'This relates to the effect 'visibility' has on audio.

A change was made to SVG Tiny 1.2 (ACTION-2207) in relation to the email sent by Niklas [1] regarding the test media-audio-212-t.svg.

We should consider treating audio separately to graphical elements for future versions of SVG. I've thought of three possibilities to approach this issue.


1) Introduce an audibility property

audibility
value: audible | silent | inherit
initial: audible
applies to: media elements

'audible' - The current graphics or media element shall be audible.
'silent' - The current graphics or media element shall be inaudible regardless of the value of 'audio-level'.



2) Introduce an audibility property similar to (1) but replaces the 'audio-level' property as well

audibility
value: <number> | silent | inherit
initial: 1.0
applies to: media elements



3) Introduce a playability property that replaces the visibility property

playability
value: visible-audible | visible-silent | hidden-audible | hidden-silent | inherit
initial: all
applies to: graphics and media elements

'visible-audible' - The current graphics or media element shall be visible and audible.
'visible-silent' - The current graphics or media element shall be visible only. If media or graphic contains audio, the audio component must be audible.
'hidden-audible' - The current graphics or media element shall be inivisble only. If the media or graphic contains audio, the audio component must be audible.
'hiddent-silent' - The current graphics or media element shall be both inivisble and inaudible.



[1] http://lists.w3.org/Archives/Public/public-svg-wg/2008JulSep/0326.html' non-public

Anthony Grasso, 24 Sep 2008, 02:18:04


Dirk Schulze <dschulze@adobe.com>, Chair, Chris Lilley <chris@w3.org>, Staff Contact
Tracker: documentation, (configuration for this group), originally developed by Dean Jackson, is developed and maintained by the Systems Team <w3t-sys@w3.org>.
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