Speech recogniton error

[vinayppatil]

I have below code for speech recognition

                // Initialize the SpeechRecognizerUI object.
                SpeechRecognizerUI recoWithUI = new SpeechRecognizerUI();

                // Display text to prompt the user's input.
                recoWithUI.Settings.ListenText = "one plus two?";

                // Give an example of ideal speech input.
                recoWithUI.Settings.ExampleText = "'One Plus Two', 'Calculate Fourty Divide Two', 'Fifty Six Multiply by Three'";

                // Initialize a URI with a path to the SRGS-compliant XML file.
                Uri calculatorRulesUri = new Uri("file://" + Windows.ApplicationModel.Package.Current.InstalledLocation.Path + @"/CalculatorRules.xml", UriKind.RelativeOrAbsolute);

                // Add the grammar to the grammar set.
                recoWithUI.Recognizer.Grammars.AddGrammarFromUri("calculatorRulesUri", calculatorRulesUri);

                // Load the grammar set and start recognition.
                SpeechRecognitionUIResult recoResult = await recoWithUI.RecognizeWithUIAsync();

When i execute it on emulator it works fine. But when i execute it on device. After executing last line it throws exception with below details.
Message = "Exception from HRESULT: 0x800455B1"

StackTrace = " at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)\r\n at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)\r\n at System.Runtime.CompilerServices.TaskAwaiter`1.GetResult()\r\n ...

What could be the issue. I have English(India) speech language installed on my phone.

Regards,
Vinay

[Loukt]

Your issue seems to be this "An attempt to load a CFG grammar with a LANGID different than other loaded grammars."
as stated here http://msdn.microsoft.com/en-us/libr...v=vs.105).aspx for the HResult : 0x800455B1

it might be xml:lang="en-US" in your CFG grammar (the one the emulator uses by default), and you need to add en-in English(India) langID to your rules (the one used in your device).
exemple :

<rule id="yes">
    <one-of>
      <item>yes</item>
      <item xml:lang="en-IN">yes</item>
    </one-of> 
  </rule>

[vinayppatil]

Hi Yassine,

Your issue seems to be this "An attempt to load a CFG grammar with a LANGID different than other loaded grammars."
as stated here http://msdn.microsoft.com/en-us/libr...v=vs.105).aspx for the HResult : 0x800455B1

it might be xml:lang="en-US" in your CFG grammar (the one the emulator uses by default), and you need to add en-in English(India) langID to your rules (the one used in your device).
exemple :

<rule id="yes">
    <one-of>
      <item>yes</item>
      <item xml:lang="en-IN">yes</item>
    </one-of> 
  </rule>

Oh yes. I had xml:lang="en-US" in my SRGS file. Changed it to xml:lang="en-IN" and it worked.

Now to support multiple languages is it possible to get list of installed language packs on the phone. So i can load correct grammar file depending on installed language pack or show error if required language pack is not installed(i know the error showing part can be done by catching exception too)

Regards,
Vinay

[Loukt]

Glad that it worked however can you test this one xml:lang="en" it should work for all english language packs.

For the language pack are you refering to the culture ?

then you should compare CultureInfo.CurrentCulture.Name with the LangID in your gammar file.

[vinayppatil]

Hi Yassine,

Glad that it worked however can you test this one xml:lang="en" it should work for all english language packs.

For the language pack are you referring to the culture ?

then you should compare CultureInfo.CurrentCulture.Name with the LangID in your gammar file.

No, it did not worked for xml:lang="en". Requires a strict language ISO code. And by language pack i did nor mean culture info. To use speech on windows phone you need to install language packs. You wont find any speech packs installed on a brand new phone. But user can install as many packs as he wish from the available list. So is there a way to get list of language packs installed on the device.??

Regards,
Vinay

[Loukt]

Ok I see, Can you try this snippet ?

this will normally list all the installed package

var voices = InstalledSpeechRecognizers.All;
foreach (var v in voices)
{
       Debug.WriteLine(v.Language); 
}

You'll just have to compare with the language in your Grammar config.
sommething like

if( voices.Any(o => o.Language = "en-IN")  )

PS : You might need to edit the snippets, since I didn't tryed any.

[vinayppatil]

Hi Yassine,

Ok I see, Can you try this snippet ?

this will normally list all the installed package

var voices = InstalledSpeechRecognizers.All;
foreach (var v in voices)
{
       Debug.WriteLine(v.Language); 
}

You'll just have to compare with the language in your Grammar config.
sommething like

if( voices.Any(o => o.Language = "en-IN")  )

PS : You might need to edit the snippets, since I didn't tryed any.

Thanks. I will test these snippets and let you know.

Regards,
Vinay

[vinayppatil]

Hi Yassine,

Sound strange but InstalledSpeechRecognizers.All is returning empty list both on emulator and device even though at least one speech is installed on both. I have no idea whats going wrong.

Regards,
Vinay

[Loukt]

Hello Vinayppatil,

I've just tested it, and it will return empty, if you don't allow these capabilities :

ID_CAP_SPEECH_RECOGNITION
ID_CAP_MICROPHONE
ID_CAP_NETWORKING

One checked, it returned the right value.

[vinayppatil]

Hello Vinayppatil,

I've just tested it, and it will return empty, if you don't allow these capabilities :

ID_CAP_SPEECH_RECOGNITION
ID_CAP_MICROPHONE
ID_CAP_NETWORKING

One checked, it returned the right value.

Ah.! Yes it was permission issue. Worked after adding capabilities.

Thanks and Regards,
Vinay