Speech Capture application to demonstrate Azure Cognitive Services

I regularly demonstrate how to use the Microsoft Azure Cognitive Services and tried to find a way how to send a microphone input stream directly to the Language Understanding Service (LUIS).

So.. here it is. Feel free to use it, any feedback (or pull request) is welcome!

Usage

The client is a WPF App (.NET Core), the main entry point can be found in the MainViewModel.cs

MainViewModel.cs

public async Task InitializeAsync()
{
    this.speechRecognizer.SpeechStateChanged += SpeechRecognizer_SpeechStateChanged;
    this.speechRecognizer.IntentRecognized += SpeechRecognizer_IntentRecognized;

    await this.speechRecognizer.StartAsync();
}

Alternatively you can use an overload of the StartAsync method to provide a pre-recorded file instead of the microphone input.

await this.speechRecognizer.StartAsync("C:\temp.wav");

appsettings.json

Please specify your Subscription key, your LUIS App Id and the Azure region in the appsettings.json file:

{
  "SpeechRecognizerSettings": {
    "SubscriptionKey": "xxx",
    "Region": "westeurope",
    "LuisAppId": "yyy"
  }
}