我无法播放2个波形文件 [英] I could not play 2 wave files

问题描述

我的项目是播放2个波形文件（播放x0.wav然后播放WaitOneSecond.wave然后播放x1.wav）

i添加Windows Media Player .COM而不是工具箱中的Windows Media Player

WaitOneSecond.wave是一个空文件，只是在x0.wav和x1.wav之间插入一个间隙

我的错误是我只能播放x0.wav

如果我从下面的代码中删除了if satement它只播放x1.wav，我不能在这里x0.wav

据我所知，变量

PlayerFinished
如果wav文件结束，
应该等于1

所以如何播放2波文件？

谢谢

My project is to play 2 wave files (play x0.wav then play WaitOneSecond.wave then play x1.wav)
i added Windows Media Player .COM not the Windows Media Player from toolbox
WaitOneSecond.wave is an empty file it is just to insert a gap between x0.wav and x1.wav
my error is i could only play x0.wav
if i removed the if satement from the code below it only play x1.wav ,i could not here x0.wav
as far as i know ,the variable
PlayerFinished
shall be equal to 1 if wav file ended
so how can i play the 2 wave files ?
thanks

using WMPLib;
namespace zenat
{
    public partial class Form1 : Form
    {
        int PlayerFinished = 0;
        WMPLib.WindowsMediaPlayer Player;
        public Form1()
        {
            InitializeComponent();
            //Sound
            Player = new WMPLib.WindowsMediaPlayer();
            Player.PlayStateChange +=
                new WMPLib._WMPOCXEvents_PlayStateChangeEventHandler(Player_PlayStateChange);
            Player.MediaError += new WMPLib._WMPOCXEvents_MediaErrorEventHandler(Player_MediaError);
            Player.settings.volume = 100;
        }
        //
        private void Player_PlayStateChange(int NewState)
        {
            if ((WMPLib.WMPPlayState)NewState == WMPLib.WMPPlayState.wmppsStopped)
            PlayerFinished = 1;
        }
        //
        private void Player_MediaError(object pMediaObject)
        {
            MessageBox.Show("Cannot play media file.");
        }
        //
        private void pronouncClick(object sender, EventArgs e)
        {   string sound;
            //PlayerFinished = 0;
            //Player.URL = "PalySilence4_OneSecond.wav";

            PlayerFinished = 0;
            sound = "x0.wav";
            if (File.Exists(sound)) Player.URL = sound;
            else Player.URL = "PalySilence4_OneSecond.wav";//

            if (PlayerFinished == 1)//start playing x1.wav if only the x0.wav ended 
            {
                //PlayerFinished = 0;
                //Player.URL = "PalySilence4_OneSecond.wav";

                PlayerFinished = 0;
                sound = "x1.wav";
                if (File.Exists(sound)) Player.URL = sound;
                else Player.URL = "PalySilence4_OneSecond.wav";
            }
        }

    }
}

推荐答案

以下已解决错误

int NwavFilePlayed = 0; //声明globalley



private void Player_PlayStateChange（int NewState）

{

if（（WMPLib.WMPPlayState）NewState == WMPLib.WMPPlayState.wmppsStopped）

{

NwavFilePlayed ++;

if（NwavFilePlayed< 5）

{

//MessageBox.Show (\"NavavFilePlayed=，NwavFilePlayed.ToString（））;

发音（hellow）;

}

//其他MessageBox.Show（不再播放文件，NwavFilePlayed =+ NwavFilePlayed。 ToString（））;



}

} // Player_PlayStateChange



private void发表（string str）//

{

string sound;



Player = new WMPLib。 WindowsMediaPlayer（）;

Player.PlayStateChange + =

新WMPLib._WMPOCXEvents_Play StateChangeEventHandler（Player_PlayStateChange）;

Player.MediaError + = new WMPLib._WMPOCXEvents_MediaErrorEventHandler（Player_MediaError）;

Player.settings.volume = 100;



//MessageBox.Show(str,\"nwavFilePlayed =+ NwavFilePlayed.ToString（））;



sound =x+ NwavFilePlayed.ToString（）+。wav;

if（File.Exists（sound））Player.URL = sound;

else Player.URL =PalySilence4_OneSecond。 wav; //

}

The following has solved the error
int NwavFilePlayed = 0;//declared globalley

private void Player_PlayStateChange(int NewState)
{
if ((WMPLib.WMPPlayState)NewState == WMPLib.WMPPlayState.wmppsStopped)
{
NwavFilePlayed++;
if (NwavFilePlayed < 5)
{
//MessageBox.Show("NwavFilePlayed=", NwavFilePlayed.ToString());
Pronounce("hellow");
}
//else MessageBox.Show("no more file to play", "NwavFilePlayed=" + NwavFilePlayed.ToString());

}
}//Player_PlayStateChange

private void Pronounce(string str)//
{
string sound;

Player = new WMPLib.WindowsMediaPlayer();
Player.PlayStateChange +=
new WMPLib._WMPOCXEvents_PlayStateChangeEventHandler(Player_PlayStateChange);
Player.MediaError += new WMPLib._WMPOCXEvents_MediaErrorEventHandler(Player_MediaError);
Player.settings.volume = 100;

//MessageBox.Show(str, "NwavFilePlayed=" + NwavFilePlayed.ToString());

sound = "x"+NwavFilePlayed.ToString()+".wav";
if (File.Exists(sound)) Player.URL = sound;
else Player.URL = "PalySilence4_OneSecond.wav";//
}

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