Mark

Nodes and Palette Options > Detailed Palette Option Descriptions > Mark

	Mark

Places a marker into a text/tag sequence. An SSML processor must either allow the VoiceXML interpreter to retrieve or must inform the interpreter when a <mark> is executed during audio output.

Type

SSML item

Available from

Any level tab in the Prompt File Editor.

See Using the Prompt File Editor.

Purpose

The Mark item is a Synthesized Speech Markup Language (SSML) element that is used to place markers in a prompt that plays TTS, TTS segment, or prompt. The markers can be used for detecting barge-in during prompt playback as well as tracking how much of a prompt the caller heard based on mark names and times.

Behavior

Marks are processed by the TTS engine as they are encountered during the speech synthesis. When a mark is encountered, the mark name is sent to the VoiceXML platform which tracks the name of the last mark encountered and the time since it was processed.