C#实现文字转语音功能
时间：2022-10-21 09:45:25 | 栏目：.NET代码 | 点击：次
本文实例为大家分享了C#实现文字转语音的具体代码，供大家参考，具体内容如下
客户提出要求，将文字内容转为语音，因为内网环境，没办法采用联网，在线这种方式，灵机一动，能否写一个简单的例子呢，搜索相关资料还真行，话不多说，有图有真相
关键是，c#有现成的一个引用
右键点击项目 > 添加引用 > .Net > 找到System.Speech点击确定
控制台程序代码：
using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Speech.Synthesis;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;
namespace TxtToVoice
{
class Program
{
[STAThread] //默认线程模型是单线程单元 (STA) 模式
static void Main(string[] args)
{
//Application.EnableVisualStyles();
//Application.SetCompatibleTextRenderingDefault(false);
//Application.Run(new Form1());
//return;
OpenFileDialog open = new OpenFileDialog();
open.Title = "请选择文本"; //打开的文件选择对话框上的标题
open.Filter = "文本文件(*.txt)|*.txt|所有文件(*.*)|*.*";//设置文件类型
open.InitialDirectory = @"D:\project\";//默认打开目录
open.FilterIndex = 1;//设置默认文件类型显示顺序
open.RestoreDirectory = false;//是否记忆上次打开的目录
//open.Multiselect = true;//是否允许多选
string content=string.Empty;
if (open.ShowDialog() == DialogResult.OK)//按下确定选择的按钮
{
string[] filename = open.FileNames;//获取多个文件的路径及文件名并存入数组
MessageBox.Show(filename[0]);
// MessageBox.Show(filename[1]);
// MessageBox.Show(open.FileName); //获取路径及文件名
// MessageBox.Show(open.SafeFileName);//获取文件名
content = ReadFile(filename[0]);
}
//-----------------------------------读出文件内容---------------------------------
SpeechSynthesizer voice = new SpeechSynthesizer(); //创建语音实例
voice.Rate = -1; //设置语速,[-10,10]
voice.Volume = 100; //设置音量,[0,100]
//voice.SpeakAsync("Hellow Word"); //播放指定的字符串,这是异步朗读
//下面的代码为一些SpeechSynthesizer的属性，看实际情况是否需要使用
voice.SpeakAsyncCancelAll(); //取消朗读
voice.Speak(content); //同步朗读
voice.Pause(); //暂停朗读
voice.Resume(); //继续朗读
voice.Dispose(); //释放所有语音资源
}
/// <summary>
/// 读取文件，返回相应字符串
/// </summary>
/// <param name="fileName">文件路径</param>
/// <returns>返回文件内容</returns>
private static string ReadFile(string fileName)
{
StringBuilder str = new StringBuilder();
using (FileStream fs = File.OpenRead(fileName))
{
long left = fs.Length;
int maxLength = 100;//每次读取的最大长度
int start = 0;//起始位置
int num = 0;//已读取长度
while (left > 0)
{
byte[] buffer = new byte[maxLength];//缓存读取结果
char[] cbuffer = new char[maxLength];
fs.Position = start;//读取开始的位置
num = 0;
if (left < maxLength)
{
num = fs.Read(buffer, 0, Convert.ToInt32(left));
}
else
{
num = fs.Read(buffer, 0, maxLength);
}
if (num == 0)
{
break;
}
start += num;
left -= num;
str = str.Append(Encoding.UTF8.GetString(buffer));
}
}
return str.ToString();
}
}
}
窗体代码：
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.IO;
using System.Linq;
using System.Speech.Synthesis;
using System.Text;
using System.Threading;
using System.Threading.Tasks;
using System.Windows.Forms;
namespace TxtToVoiceForm
{
public partial class Form2 : Form
{
private SpeechSynthesizer speech;
/// <summary>
/// 音量
/// </summary>
private int value = 100;
/// <summary>
/// 语速
/// </summary>
private int rate;
public Form2()
{
InitializeComponent();
ReadlocalFile();
comboBox1.SelectedIndex = 0;
}
private void comboBox1_SelectedIndexChanged(object sender, EventArgs e)
{
rate = Int32.Parse(comboBox1.Text);
}
//private void 打开文件ToolStripMenuItem_Click(object sender, EventArgs e)
//{
// this.ReadlocalFile();
//}
/// <summary>
/// 读取本地文本文件的方法
/// </summary>
private void ReadlocalFile()
{
var open = new OpenFileDialog();
open.ShowDialog();
//得到文件路径
string path = open.FileName;
if (path.Trim().Length == 0)
{
return;
}
var os = new StreamReader(path, Encoding.UTF8);
string str = os.ReadToEnd();
textBox1.Text = str;
}
private void 清空内容ToolStripMenuItem_Click(object sender, EventArgs e)
{
textBox1.Text = "";
}
private void button1_Click(object sender, EventArgs e)
{
string text = textBox1.Text;
if (text.Trim().Length == 0)
{
MessageBox.Show("不能阅读空内容!", "错误提示");
return;
}
if (button1.Text == "语音试听")
{
speech = new SpeechSynthesizer();
new Thread(Speak).Start();
button1.Text = "停止试听";
}
else if (button1.Text == "停止试听")
{
speech.SpeakAsyncCancelAll();//停止阅读
button1.Text = "语音试听";
}
}
private void Speak()
{
speech.Rate = rate;
//speech.SelectVoice("Microsoft Lili");//设置播音员（中文）
//speech.SelectVoice("Microsoft Anna"); //英文
speech.Volume = value;
speech.SpeakAsync(textBox1.Text);//语音阅读方法
speech.SpeakCompleted += speech_SpeakCompleted;//绑定事件
}
/// <summary>
/// 语音阅读完成触发此事件
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
void speech_SpeakCompleted(object sender, SpeakCompletedEventArgs e)
{
button1.Text = "语音试听";
}
/// <summary>
/// 拖动进度条事件
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void trackBar1_Scroll(object sender, EventArgs e)
{
//因为trackBar1的值为（0-10）之间而音量值为（0-100）所以要乘10；
value = trackBar1.Value * 10;
}
private void button2_Click(object sender, EventArgs e)
{
string text = textBox1.Text;
if (text.Trim().Length == 0)
{
MessageBox.Show("空内容无法生成!", "错误提示");
return;
}
this.SaveFile(text);
}
/// <summary>
/// 生成语音文件的方法
/// </summary>
/// <param name="text"></param>
private void SaveFile(string text)
{
speech = new SpeechSynthesizer();
var dialog = new SaveFileDialog();
dialog.Filter = "*.wav|*.wav|*.mp3|*.mp3";
dialog.ShowDialog();
string path = dialog.FileName;
if (path.Trim().Length == 0)
{
return;
}
speech.SetOutputToWaveFile(path);
speech.Volume = value;
speech.Rate = rate;
speech.Speak(text);
speech.SetOutputToNull();
MessageBox.Show("生成成功!在" + path + "路径中！", "提示");
}
private void label1_Click(object sender, EventArgs e)
{
}
private void label3_Click(object sender, EventArgs e)
{
this.ReadlocalFile();
}
}
}
意外得知C#丰富的功能，还是自己动手，没有想象的那么难，希望能帮到有需要的小伙伴们！