Trouble with the Speech Recognition Grammar - VB.NET

Question

0.00/5 (No votes)

See more:

When I try to load the grammar I made programatically I got an error: SAPI does not implement phonetic alphabet selection.

My code:

VB

Imports System.Speech
Imports System.Xml
Imports System.Speech.Recognition
Imports System.IO

Public Class Form1
    Dim engine As New Speech.Recognition.SpeechRecognitionEngine
    Dim gram As new Speech.Recognition.Grammar("C:\Test\Speech\mygrammar.xml")
    Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load

        Dim choices = New Recognition.Choices()

        choices.Add("Red")
        choices.Add("Blue")
        choices.Add("Green")
        choices.Add("Yellow")
        Dim gb = New GrammarBuilder()

        gb.Append(choices)

        Dim doc = New Speech.Recognition.SrgsGrammar.SrgsDocument(gb)
        IO.Directory.CreateDirectory("C:\Test")
        IO.Directory.CreateDirectory("C:\Test\Speech")
        Dim xWriter = System.Xml.XmlWriter.Create("C:\Test\Speech\mygrammar.xml")

        doc.WriteSrgs(xWriter)
        xWriter.Close()

        Dim compiledFile = New FileStream("C:\Test\Speech\mycompiledgrammar.cfg", FileMode.OpenOrCreate)

        Speech.Recognition.SrgsGrammar.SrgsGrammarCompiler.Compile("C:\Test\Speech\mygrammar.xml", compiledFile)
        compiledFile.Close()
    End Sub

    Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
        engine.LoadGrammar(gram) 'There's the error
        engine.SetInputToWaveFile("D:\record.wav")
    End Sub
End Class

Grammar:

<?xml version="1.0" encoding="utf-8">
<grammar xml:lang="en-US" root="root" tag-format="properties-ms/1.0" version="1.0" xmlns="http://www.w3.org/2001/06/grammar">
    <rule id="root" scope="private">
        <one-of>
            <item>Yellow</item>
        </one-of>
    </rule>
</grammar>

Posted 1-Jul-12 21:28pm

Member 9097242

Updated 2-Jul-12 5:11am

Dave Kreskowiak

v6

Add a Solution

Comments

Sergey Alexandrovich Kryukov 2-Jul-12 3:43am

In what line? Why do you use all those files and what's in those files?
--SA

Member 9097242 2-Jul-12 4:01am

"engine.LoadGrammar(gram)" - there is the error:
SAPI does not implement phonetic alphabet selection.

Sergey Alexandrovich Kryukov 2-Jul-12 4:25am

Thank you, but now it good to know what is in gram. What's in that file?
--SA

Member 9097242 2-Jul-12 4:51am

The grammar, but it don't works

Dave Kreskowiak 2-Jul-12 9:58am

I think he meant you should post the contents of the file.

Member 9097242 2-Jul-12 10:39am

Grammar contents added to the first post.

Sergey Alexandrovich Kryukov 2-Jul-12 16:02pm

Ah, this is event a re-post! It cannot help you. Provide all the information in one place and don't re-post, if you really need effective help.
--SA

Sergey Alexandrovich Kryukov 2-Jul-12 16:00pm

I understand that is the grammar, but "don't work" is not informative. I would be good to see the content of the file. Please understand that, due to the season of summer vacations, my access to your hard drive is somewhat limited... :-)
--SA

1 solution

Add a Solution

Add your solution here

Treat my content as plain text, not as HTML

Preview 0

…

Existing Members

Sign in to your account

...or Join us

Download, Vote, Comment, Publish.

Your Email
Password
Forgot your password?

Your Email
This email is in use. Do you need your password?
Optional Password

I have read and agree to the Terms of Service and Privacy Policy
Please subscribe me to the CodeProject newsletters

When answering a question please:

Read the question carefully.
Understand that English isn't everyone's first language so be lenient of bad spelling and grammar.
If a question is poorly phrased then either ask for clarification, ignore it, or edit the question and fix the problem. Insults are not welcome.
Don't tell someone to read the manual. Chances are they have and don't get it. Provide an answer or move on to the next question.

Let's work to help developers, not make them feel stupid.

This content, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

Dave Kreskowiak · Answer 1 · 2012-07-02T05:55:00

Your gram declaration runs BEFORE the Form.Load event is fired, so on the first run of your app, the grammar.xml file doesn't exist and is empty.

Your code should be creating the Grammar object after it has written the file:

Public Class Form1
    Dim engine As New SpeechRecognitionEngine

    Dim gram As Grammar

    Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
 
        Dim choices = New Recognition.Choices()
 
        choices.Add("Red")
        choices.Add("Blue")
        choices.Add("Green")
        choices.Add("Yellow")
        Dim gb = New GrammarBuilder()
 
        gb.Append(choices)
 
        Dim doc = New Speech.Recognition.SrgsGrammar.SrgsDocument(gb)
        IO.Directory.CreateDirectory("C:\Test")
        IO.Directory.CreateDirectory("C:\Test\Speech")
        Dim xWriter = System.Xml.XmlWriter.Create("C:\Test\Speech\mygrammar.xml")
 
        doc.WriteSrgs(xWriter)
        xWriter.Close()
 
        Dim compiledFile = New FileStream("C:\Test\Speech\mycompiledgrammar.cfg", FileMode.OpenOrCreate)
 
        Speech.Recognition.SrgsGrammar.SrgsGrammarCompiler.Compile("C:\Test\Speech\mygrammar.xml", compiledFile)
        compiledFile.Close()

        gram = New Grammar("C:\Test\Speech\mygrammar.xml")    End Sub
 
    Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
        If gram IsNot Nothing Then
            engine.LoadGrammar(gram)
            engine.SetInputToWaveFile("D:\record.wav")
        Else
            ' The grammar wasn't loaded...
            ' Do something about the condition or notify the user.
        End If
    End Sub
End Class