audio Element
Supports the insertion of recorded audio files.
Syntax
<audio src="string" /> </audio>
Attributes
Attribute |
Description |
|---|---|
src |
Required. Specifies the path and name of the audio file. The value of this attribute can be an absolute, local path for speech applications running in a local environment. This attribute is case-sensitive only when referencing files residing in file systems that are case-sensitive. |
The audio element supports .WAV files containing RIFF headers and encoded with the following parameters.
Parameter |
Value |
|---|---|
Format |
PCM, a-law, u-law |
Bit-depth |
8 bits, 16 bits |
Channels |
Mono only |
Sampling Rate |
All sampling rates supported. |
Remarks
Use this element to play a known audio file.
The content of an audio element should be either plain text or text with SSML markup that should be spoken if the audio file specified in the src attribute is either unavailable or unplayable. The content of an audio element can also include another audio element.
Example
<?xml version="1.0" encoding="ISO-8859-1"?>
<speak version="1.0"
xmlns="http://www.w3.org/2001/10/synthesis"
xml:lang="en-US">
<p>
<audio src="http://www.treyresearch.net/audioprompts/opinionprompt.wav"> Thanks for offering your opinion. Please begin speaking after the beep. </audio>
<audio src="http://www.treyresearch.net/audioprompts/beep.wav"> The beep could not
be played, please voice your opinion now. </audio>
</p>
</speak>