Asqatasun v4 - AccessiWeb 2.2 - Rule 4.19.1
Summary
This test consists in checking whether pre-recorded audio-only time-based media is enough audible.
Business description
Criterion : 4.19
Test : 4.19.1
Test description :
Does each audio time-based media that is prerecorded and played via an Object, Applet, Embed tag or that is provided for download pass one of the conditions below (except in special cases)?
- The background sounds can be turned off
- The dialogue track(s) are 20 decibels higher than the background sounds.
- An alternative version in which the backgroun sounds can be turned off is available
- An alternative version in which the dialogue track(s) are 20 decibels higher than the background sounds is available.
Level : Gold
Technical description
Scope : page
Decision level : semidecidable
Algorithm
Selection
Selection1 : All the embed
, applet
and object
tags (embed, applet, object)
Process
The selection handles the process.
For each occurence of the Selection1 raise a MessageA
MessageA : Check Manually the elements
- code :ManualCheckOnElements
- status: NMI
- parameter : snippet
- present in source : yes
Analysis
Not Applicable
Selection is empty (The page has neither object
, nor applet
nor embed
tag)
Pre-qualified
The selection is not empty
Notes
We detect the elements of the scope of the test to determine whether the test is applicable.
On latest webdev data set (2013-10-30, 78,000 pages), the test scope (embed, applet, object) has been found on 6795 pages, i.e on 8.7% of the pages