type Attribute
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Specifies the type of audio file used to contain the recorded speech. Optional.
<record type=audioType />
Remarks
The following audio types are recognized as valid for the type attribute.
| Type | Description |
|---|---|
| audio/basic | Headerless 8Khz 8-bit mono, 8Khz 8-bit mono (PCM) single-channel compressed audio based on the telephony standard of the locale where it is used. This can either be a-law or u-law. |
| audio/wav | 8Khz, 8-bit mono (PCM) single-channel compressed audio based on the telephony standard of the locale where it is used. This can either be a-law or u-law. This is the default for telephony applications. |
| audio/x-wav | 16Khz PCM, 22Khz PCM, 8Khz PCM. This is the default type for multimodal applications. |
Multimodal applications use higher sample rates to gain higher recognition accuracy.
Example
The following code demonstrates the use of the type attribute.
<html xmlns:salt="http://www.saltforum.org/2002/SALT">
<head>
<object id="Speechtags" CLASSID="clsid:DCF68E5B-84A1-4047-98A4-0A72276D19CC" VIEWASTEXT></object>
</head>
<body onload="RunAsk()">
<?import namespace="salt" implementation="#SpeechTags" />
<form id="f1" action="http://www.woodgrovebank.com/savewaveform.aspx" method="get">
<input name="vmail" type="hidden" />
</form>
<table cellspacing="0" cols="2">
<tr>
<td>Recording duration:</td>
<td><input id="iptRecDur" type="text" size="50"></td>
</tr>
<tr>
<td>Recording location:</td>
<td><input id="iptRecLoc" type="text" size="50"></td>
</tr>
<tr>
<td>Recording size:</td>
<td><input id="iptRecSize" type="text" size="50"></td>
</tr>
<tr>
<td>Recording type:</td>
<td><input id="iptRecType" type="text" size="50" ></td>
</tr>
</table>
<salt:prompt id="p_record" oncomplete="l_recordvm.Start()">
Please speak after the tone. You may press any key to end your recording.
</salt:prompt>
<salt:prompt id="p_save">
Do you want to save this recording?
</salt:prompt>
<!-- Recording session - max 60 seconds recording -->
<salt:listen beep="true" id="l_recordvm" initialtimeout="3000" endsilence="1500" babbletimeout="60000"
onreco="saveAudio()" onnoreco="saveAudio()" onsilence="RunAsk()" >
<salt:record type="audio//x-wav" />
</salt:listen>
<!-- listen for capturing whether user wants to save voice mail -->
<salt:listen id="l_save" onreco="processSave()">
<salt:grammar name="yesno">
<grammar version="1.0" tag-format="semantics-ms/1.0" lang="en-US"
xmlns="http://www.w3.org/2001/06/grammar" root="root">
<rule id="root">
<ruleref uri="#yesno" />
</rule>
<rule id="yesno">
<one-of>
<item>Yes</item>
<item>No</item>
</one-of>
</rule>
</grammar>
</salt:grammar>
</salt:listen>
<script language="JScript">
<!--
function RunAsk() {
p_record.Start();
}
// Ask user if they are satisfied with their recording
function saveAudio () {
showRecDetails();
p_save.Start();
l_save.Start();
}
// If user is satisfied post file name back to web server
// otherwise start again
function processSave () {
smlResult = event.srcElement.recoresult;
saidText = smlResult.selectSingleNode("/").text;
if (saidText == "Yes") {
alert("Recording has been saved at " + l_recordvm.recordlocation);
} else {
alert("Recording will not be saved.");
RunAsk();
}
}
function showRecDetails() {
iptRecDur.value=l_recordvm.recordduration + " milliseconds";
iptRecLoc.value=l_recordvm.recordlocation;
iptRecSize.value=l_recordvm.recordsize + " bytes";
iptRecType.value=l_recordvm.recordtype;
}
-->
</script>
</body>
</html>