Blazor Speech Recognition 
Summary
This is a class library for Blazor app to provide Speech Recognition API access.
How to install and use?
1. Installation and Registration
Step.1-1 Install the library via NuGet package, like this.
> dotnet add package Toolbelt.Blazor.SpeechRecognition --version 0.0.2.1-alphaStep.1-2 Register "SpeechRecognition" service into the DI container, at ConfigureService method in the Startup class of your Blazor application.
// Startup.cs
using Toolbelt.Blazor.Extensions.DependencyInjection; // <- Add this, and...
...
public class Startup
{
public void ConfigureServices(IServiceCollection services)
{
services.AddSpeechRecognition(); // <- Add this line.
...2. Usage in your Blazor component (.razor)
Step.2-1 Open the Toolbelt.Blazor.SpeechRecognition namespace, and inject the SpeechRecognition service into the component.
@{/* This is your component .razor */}
@using Toolbelt.Blazor.SpeechRecognition @{/* Add these two lines. */}
@inject SpeechRecognition SpeechRecognition
...Step.2-2 Subscribe Result event of the SpeechRecognition service to receive the results of speech recognition.
protected override void OnInit()
{
this.SpeechRecognition.Result += OnSpeechRecognized;
}
void OnSpeechRecognized(object sender, SpeechRecognitionEventArgs args)
{
// DO SOMETHING...
}Step.2-3 Invoke start() method of the SpeechRecognition service when you want to start speech recognition.
void OnClickStart()
{
this.SpeechRecognition.Start();
}Step.2-4 Implement IDisposable interface on the component, and unsubscribe Result event when the component is disposing.
...
@implements IDisposable
...
@code {
...
public void Dispose()
{
this.SpeechRecognition.Result -= OnSpeechRecognized;
}
}See also sample code on the GitHub repository.