Implementing voice synthesis broadcaster based on C#

1. Voice synthesis broadcast application scenarios

Voice synthesis broadcasters are widely used in the following fields:

Industrial control: production line abnormal alarms, equipment status real-time broadcast (such as WinCC voice alarm plug-in in webpage 4)

Intelligent service: hospital number calling system, bank line-up reminder, intelligent customer service response

Information broadcast: news reading, weather forecast, traffic information release (such as Tencent Cloud Voice Application on Web 7)

Educational assistance: reading of electronic textbooks, correcting pronunciation of language learning

IoT devices: smart home status prompts, car navigation reports

2. Development environment preparation

Development Tools: Visual Studio 2019/2022 (recommended)

Framework version: .NET Framework 4.0+

Dependency library:

Add a reference (right-click the project → add → reference → assembly → framework)

Requires the operating system to support the voice engine (full version of Windows system)

3. Detailed explanation of the implementation steps

3.1 Create a WinForm project

Create a new Windows Forms Application Project

The design interface includes:

Text box (txtContent): Enter the text to be broadcasted

BtnSpeak button (btnSpeak)

Parameter adjustment control (volume/speech slider)

3.2 Core code implementation

using ;
using ;
 
namespace SpeechBroadcaster
{
    public partial class MainForm : Form
    {
        private SpeechSynthesizer synthesizer;
 
        public MainForm()
        {
            InitializeComponent();
            InitSpeechEngine(); // Initialize the voice engine        }
 
        /// &lt;summary&gt;
        /// Initialize the speech synthesizer        /// &lt;/summary&gt;
        private void InitSpeechEngine()
        {
            synthesizer = new SpeechSynthesizer();
            (); // Set default audio output            (, ); // Choose a female voice        }
 
        /// &lt;summary&gt;
        /// Report button click event        /// &lt;/summary&gt;
        private void btnSpeak_Click(object sender, EventArgs e)
        {
            if (!())
            {
                ConfigureParameters(); // Configure broadcast parameters                (); // Asynchronous broadcast (not blocking the UI)            }
        }
 
        /// &lt;summary&gt;
        /// Configure volume and speed parameters        /// &lt;/summary&gt;
        private void ConfigureParameters()
        {
             = ;    // Volume range 0-100             =  - 10;  // Speak speed range - 10 (slow) to 10 (fast)        }
 
        /// &lt;summary&gt;
        /// Release resources when the form is closed        /// &lt;/summary&gt;
        protected override void OnFormClosing(FormClosingEventArgs e)
        {
            synthesizer?.Dispose();
            (e);
        }
    }
}

3.3 Key Function Extensions

1. Multilingual support:

// Get the installed voice packageforeach (InstalledVoice voice in ())
{
    ();
}
 
// Set voice type(selectedVoiceName);

2. Audio saving function:

("");
(text);
();

3. Queue broadcast system:

private Queue<string> speechQueue = new Queue<string>();
 
private void AddToQueue(string text)
{
    (text);
    if (!())
    {
        ProcessQueue();
    }
}
 
private void ProcessQueue()
{
    while ( > 0)
    {
        (());
    }
}

4. Things to note

System compatibility：

Make sure that the target system is equipped with a voice engine (control panel → voice recognition → text-to-speech conversion)

Microsoft Speech Platform is required to install the streamlined system (refer to web page 1)

Exception handling：

try
{
    (text);
}
catch (Exception ex)
{
    ($"Report failed：{}");
}

Performance optimization：

useSpeakAsyncImplement asynchronous broadcasting to avoid UI freezing

Enable queue mechanism during long-term broadcast

The above is the detailed content of implementing a voice synthesis broadcaster based on C#. For more information about C# voice synthesis broadcast, please pay attention to my other related articles!