Test Case sc1.4.6_l3_005: Audio contrast: low background sound with screenreader output

Formal Metadata

Formal Metadata
TitleAudio contrast: low background sound with screenreader output
DescriptionDocument containing text and a multimedia object. The multimedia starts automatically and plays background noise, the text should be read with a screenreader.
CreatorBenToWeb (Daniela.Ortner@…)
RightsCopyright BenToWeb 2005-2007
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 tested here.

Test Modes

Three or more accessibility experts.

Test Files

Test file.

TCDL Data

sc1.4.6_l3_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 8, column 10) the following success criterion: http://www.w3.org/TR/2007/WD-WCAG20-20070517/Overview.html#visual-audio-contrast-noaudio.

The test case passes (line 15, column 14) the following success criterion: http://www.w3.org/TR/2007/WD-WCAG20-20070517/Overview.html#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.

Technical Comment

This test case does not map to a WCAG 2.0 technique or failure.

Secondary Rules

Secondary Rule (WCAG 2.0 - April 2006 Working Draft (Last Call))

The test case passes (line 8, column 10) the following success criterion: http://www.w3.org/TR/2006/WD-WCAG20-20060427/guidelines.html#visual-audio-contrast-noaudio.

The test case passes (line 15, column 14) the following success criterion: http://www.w3.org/TR/2006/WD-WCAG20-20060427/guidelines.html#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.

Technical Comment

Online version: sc1.4.4_l3_005.

Secondary Rule (WCAG 2.0 - June 2005 Working Draft)

The test case passes (line 8, column 10) the following success criterion: http://www.w3.org/TR/2006/WD-WCAG20-20050630/#visual-audio-contrast-noaudio.

The test case passes (line 15, column 14) 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 Rule (WCAG 2.0 - February 2005 Editor's Draft)

The test case passes (line 8, column 10) 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 15, column 14) 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.