Test Case xhtml1_wcag2_20050630_1.4_l3_sc2_005: Audio contrast

Formal Metadata

Formal Metadata
TitleAudio contrast
DescriptionDocument containing text and a multimedia object. The multimedia starts automatically and plays background noise, the text should be read with a screenreader.
CreatorBenToWeb (sandor.herramhof@…)
RightsCopyright BenToWeb 2004-2007
LanguageEnglish
Date2005-08-17
Statusaccepted for end user evaluation

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)

Feature: p (namespace: http://www.w3.org/1999/xhtml) .

Technical specification: Paragraphs: the P element .

Feature: object (namespace: http://www.w3.org/1999/xhtml) .

Technical specification: General Inclusion: The object element .

Test Data

Purpose

This test case is intended to pass, because the background sound is 20 dB lower than the foreground audio content. Only the understandability of the speech output is being tested here.

Test Modes

End user.

Test Files

Test file.

TCDL Data

xhtml1_wcag2_20050630_1.4_l3_sc2_005 (XML).

Rules

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

Primary Rules

The test case passes (line 7, column 7) the following success criterion: http://www.w3.org/TR/2006/WD-WCAG20-20050630/#visual-audio-contrast-noaudio.

The test case passes (line 13, column 6) the following success criterion: http://www.w3.org/TR/2006/WD-WCAG20-20050630/#visual-audio-contrast-noaudio.

Functional Outcome

This test case is intended to pass the foreground speaker with respect to the background sound is loud enough.

Secondary Rules

Secondary Rule (WCAG 2.0 - February 2005 Editor's Draft)

The test case passes (line 7, column 7) the following success criterion: http://www.w3.org/WAI/GL/WCAG20/WD-WCAG20-20050211/#4.1_use-spec-document-backward-compat-violations.

The test case passes (line 13, column 6) the following success criterion: http://www.w3.org/WAI/GL/WCAG20/WD-WCAG20-20050211/#4.1_use-spec-document-backward-compat-violations.

Functional Outcome

This test case is intended to pass the foreground speaker with respect to the background sound is loud enough.