Test Case xhtml1_wcag2_20050630_1.4_l3_sc2_006: Audio contrast

Formal Metadata

Formal Metadata
TitleAudio contrast
DescriptionDocument containing a link to an audio file with foreground speaker, background sound and occasional sound effects. The foreground speaker is louder than the background sound.
CreatorBenToWeb (sandor.herramhof@…)
RightsCopyright BenToWeb 2004-2007

Technologies and Features

Technologies are markup languages or data formats. If the technology is a markup language, “features” refers to elements and attributes.

XHTML™ 1.0 The Extensible HyperText Markup Language (Second Edition)

XHTML™ 1.0 The Extensible HyperText Markup Language (Second Edition)

Test Data


The document is intended to pass, because except of the occasional sound effect the foreground audio content is understandable. Only the individual perception of the audio contrast is tested here.

Test Modes

End user.

Test Files

Test file.


xhtml1_wcag2_20050630_1.4_l3_sc2_006 (XML).


“Rules” refer to success criteria in WCAG 2.0, checkpoints in WCAG 1.0 and similar requirements.

Primary Rules

The test case passes the following success criterion: http://www.w3.org/TR/2006/WD-WCAG20-20050630/#visual-audio-contrast-noaudio.

Functional Outcome

Background sound with occasional sound effects.

Technical Comment

One audio file, foreground speaker with occational sound effect.