Gets the normalized text for a recognized word.
Namespace:
Microsoft.Speech.Recognition
Assembly:
Microsoft.Speech (in Microsoft.Speech.dll)
Syntax
| Visual Basic (Declaration) |
|---|
Public ReadOnly Property Text As String Get |
| Visual Basic (Usage) |
|---|
Dim instance As RecognizedWordUnit Dim value As String value = instance.Text |
| C# |
|---|
public string Text { get; } |
Property Value
Type: System..::..StringA string that contains the normalized text output for a given input word.
Remarks
In most cases, the values returned by Text and LexicalForm will be identical. However, recognition engines may use speech normalization to return more user-friendly or colloquial text representations of audio input.
Speech normalization is the use of special constructs or symbols to express speech in writing. For example, normalization can replace the spoken words "a dollar and sixteen cents" with "$1.16" in output text.
Examples
The following example shows a utility routine that generates a string in one of three formats: lexical (using LexicalForm), normalized (using Text), and phonetic (using Pronunciation). The text output is obtained from a ReadOnlyCollection of RecognizedWordUnit objects, which is obtained from the Words property on the RecognizedPhrase object.
| C# | Copy Code |
|---|---|
internal enum WordType
{
Text,
Normalized = Text,
Lexical,
Pronunciation
} | |
| C# | Copy Code |
|---|---|
internal static string stringFromWordArray(
ReadOnlyCollection<RecognizedWordUnit> words,
WordType type)
{
string text = "";
foreach (RecognizedWordUnit word in words)
{
string wordText = "";
if (type == WordType.Text || type == WordType.Normalized)
{
wordText = word.Text;
}
else if (type == WordType.Lexical)
{
wordText = word.LexicalForm;
}
else if (type == WordType.Pronunciation)
{
wordText = word.Pronunciation;
}
else
{
throw new InvalidEnumArgumentException(
String.Format("[0}: is not a valid input", type));
}
// Use display attribute
if ((word.DisplayAttributes & DisplayAttributes.OneTrailingSpace) != 0)
{
wordText += " ";
}
if ((word.DisplayAttributes & DisplayAttributes.TwoTrailingSpaces) != 0)
{
wordText += " ";
}
if ((word.DisplayAttributes & DisplayAttributes.ConsumeLeadingSpaces) != 0)
{
wordText = wordText.TrimStart();
}
if ((word.DisplayAttributes & DisplayAttributes.ZeroTrailingSpaces) != 0)
{
wordText = wordText.TrimEnd();
}
text += wordText;
}
return text;
} | |
See Also
