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Getting Started with Blazor SpeechToText in a Blazor WASM App
27 Apr 20266 minutes to read
This section briefly explains about how to include Syncfusion® Blazor SpeechToText component in a Blazor WebAssembly App using Visual Studio, Visual Studio Code, and the .NET CLI.
Prerequisites
Create a new Blazor App in Visual Studio
Create a Blazor WebAssembly App using Visual Studio via Microsoft Templates or the Syncfusion® Blazor Extension. For detailed instructions, refer to the Blazor WASM App Getting Started documentation.
Prerequisites
Create a new Blazor App in Visual Studio Code
Create a Blazor WebAssembly App using Visual Studio Code via Microsoft Templates or the Syncfusion® Blazor Extension. For detailed instructions, refer to the Blazor WASM App Getting Started documentation.
Alternatively, create a WebAssembly application by using the following command in the integrated terminal (Ctrl+`).
dotnet new blazorwasm -o BlazorApp
cd BlazorAppPrerequisites
Install the latest version of .NET SDK. If the .NET SDK is already installed, determine the installed version by running the following command in a command prompt (Windows), terminal (macOS), or command shell (Linux).
dotnet --versionCreate a Blazor WebAssembly App using .NET CLI
Run the following command to create a new Blazor WebAssembly App in a command prompt (Windows) or terminal (macOS) or command shell (Linux). For detailed instructions, refer to the Blazor WASM App Getting Started documentation.
dotnet new blazorwasm -o BlazorApp
cd BlazorAppInstall Syncfusion® Blazor packages
Install Syncfusion.Blazor.Inputs NuGet package in your project using the NuGet Package Manager in Visual Studio (Tools → NuGet Package Manager → Manage NuGet Packages for Solution), or the integrated terminal in Visual Studio Code (dotnet add package), or the .NET CLI.
Alternatively, run the following commands in the Package Manager Console to achieve the same.
Install-Package Syncfusion.Blazor.Inputs -Version 33.2.3NOTE
All Syncfusion Blazor packages are available on nuget.org. See the NuGet packages topic for details.
Add import namespaces
After the package is installed, open the ~/_Imports.razor file and import the Syncfusion.Blazor and Syncfusion.Blazor.Inputs namespaces.
@using Syncfusion.Blazor
@using Syncfusion.Blazor.InputsRegister Syncfusion® Blazor service
Register the Syncfusion® Blazor service in the Program.cs file of your Blazor WebAssembly App.
....
using Syncfusion.Blazor;
....
builder.Services.AddSyncfusionBlazor();
....Add script resources
The script can be accessed from NuGet through Static Web Assets. Include the script reference in the ~/index.html file.
<script src="_content/Syncfusion.Blazor.Core/scripts/syncfusion-blazor.min.js" type="text/javascript"></script>NOTE
Check out the Adding Script Reference topic to learn different approaches for adding script references in the Blazor application.
Add Syncfusion® Blazor SpeechToText component
Add the Syncfusion® Blazor SpeechToText component in the ~/Pages/Index.razor file.
@using Syncfusion.Blazor.Inputs
<div class="speechtext-container">
<SfSpeechToText @bind-Transcript="@transcript"></SfSpeechToText>
<SfTextArea RowCount="5" ColumnCount="50" @bind-Value="@transcript" ResizeMode="Resize.None" Placeholder="Transcribed text will be shown here..."></SfTextArea>
</div>
<style>
.speechtext-container {
margin: 50px auto;
gap: 20px;
display: flex;
flex-direction: column;
align-items: center;
}
</style>
@code {
string transcript = "";
}- Press Ctrl+F5 (Windows) or ⌘+F5 (macOS) to launch the application. This will render the Syncfusion® Blazor SpeechToText component in the default web browser.
The SpeechToText component requires an internet connection and a browser that supports the SpeechRecognition Web Speech API.
Add button content
Use the Text property to display the start listening text and StopStateText property to display the stop listening text by using the ButtonSettings property.
@using Syncfusion.Blazor.Inputs
<div class="speechtext-container">
<SfSpeechToText ButtonSettings="@buttonSettings" @bind-Transcript="@transcript"></SfSpeechToText>
<SfTextArea RowCount="5" ColumnCount="50" @bind-Value="@transcript" ResizeMode="Resize.None" Placeholder="Transcribed text will be shown here..."></SfTextArea>
</div>
<style>
.speechtext-container {
margin: 50px auto;
gap: 20px;
display: flex;
flex-direction: column;
align-items: center;
}
</style>
@code {
string transcript = "";
SpeechToTextButtonSettings buttonSettings = new SpeechToTextButtonSettings()
{
Text = "Start Listening", // Displays when idle
StopStateText = "Stop Listening" // Displays when speech recognition is active
};
}
