VoiceXML UCMA Error when deploying to server

Question

I have deployed a sample project to a Windows 2008 virtual server that does not have any audio set up.

I have installed the UCMA 3.0 runtime. This application runs on a Windows 7 64 bit development laptop.

I am receiving the following exception.

    Error: Recognizer setting not supported by recognizer.
    Stacktrace:    at Microsoft.Speech.Internal.SapiInterop.SapiRecognizer.SetProperty(ISpRecognizer sapiRecognizer, String name, Object value)
                   at Microsoft.Speech.Internal.SapiInterop.SapiRecognizer.<>c__DisplayClass1.<SetPropertyNum>b__0()
                   at Microsoft.Speech.Recognition.SpeechRecognitionEngine.UpdateRecognizerSetting(String settingName, Int32 updatedValue)
                   at Microsoft.SpeechServer.Core.SpeechRecognizer..ctor(ICallProxy callProxy)
                   at Microsoft.SpeechServer.Core.TelephonySession..ctor(ICallProxy callProxy)
                   at Microsoft.SpeechServer.Core.ApplicationHost..ctor(ICallProxy callProxy, Uri vxmlUrl)
                   at Microsoft.Speech.VoiceXml.Browser.RunWorker()
                   at Microsoft.Speech.VoiceXml.Browser.Run(Uri vxmlPage, CookieContainer container)

This happens when from this block of code:

InitializeVoiceXmlBrowswer();

var helloWorldUri = new Uri(new Uri(Environment.CurrentDirectory + "\\"), "HelloWorld.vxml");

VoiceXmlBrowser.SetAudioVideoCall(call);

VoiceXmlResult voiceResult = VoiceXmlBrowser.Run(helloWorldUri, null);

Answer 1

This issue was sloved be using a server with a sound card.

Answer 2

Could be that you need to specify the language pack that you have installed - see the accepted answer here