using System;

 using System.Collections.Generic;

 using System.ComponentModel;

 using System.Data;

 using System.Drawing;

 using System.IO;

 using System.Linq;

 using System.Media;

 using System.Text;

 using System.Threading;

 using System.Windows.Forms;

 using NAudio.Wave;

 namespace VoiceDemo

 {

     public partial class Form1 : Form

     {

         public Form1()

         {

             InitializeComponent();

         }

         private void button1_Click(object sender, EventArgs e)

         {

             string[] lstMp3s = Directory.GetFiles(Application.StartupPath + "\\mp3", "*.mp3");

             Dictionary<string, string> lstDicMp3 = new Dictionary<string, string>();

             for (int i = ; i < lstMp3s.Length; i++)

             {

                 lstDicMp3.Add(Path.GetFileNameWithoutExtension(lstMp3s[i]), lstMp3s[i]);

             }

             lstDicMp3 = lstDicMp3.OrderByDescending(p => p.Key.Length).ToDictionary(p => p.Key, o => o.Value);

             string strText = textBox1.Text;

             List<string> lst = new List<string>();

             GetPlayList(lstDicMp3, strText, ref lst);

             foreach (var item in lst)

             {

                 using (var ms = File.OpenRead(lstDicMp3[item]))

                 using (var rdr = new Mp3FileReader(ms))

                 using (var wavStream = WaveFormatConversionStream.CreatePcmStream(rdr))

                 using (var baStream = new BlockAlignReductionStream(wavStream))

                 using (var waveOut = new WaveOut(WaveCallbackInfo.FunctionCallback()))

                 {

                     waveOut.Init(baStream);

                     waveOut.Play();

                     while (waveOut.PlaybackState == PlaybackState.Playing)

                     {

                         Thread.Sleep();

                     }

                 }

             }

         }

         private void GetPlayList(Dictionary<string, string> lstDicMp3, string strText, ref  List<string> lst)

         {

             foreach (var item in lstDicMp3)

             {

                 if (strText.StartsWith(item.Key))

                 {

                     lst.Add(item.Key);

                     strText = strText.Remove(, item.Key.Length);

                     break;

                 }

             }

             if (strText.Length > )

                 GetPlayList(lstDicMp3, strText, ref lst);

         }

     }

 }