努力使用我的语音识别应用程序 C# 添加后续功能

Question

例如，我说"播放下一首歌"，我的应用程序这样做了，我想要一个函数，它再次开始侦听 3 秒，只听"再听一遍"，这样它就可以再跳过一次然后再次听 3 秒，如果 3 秒过去了，我希望循环语句关闭。

这是我尝试过的"：

private async void Default_SpeechRecognized(object sender, SpeechRecognizedEventArgs e)
{
string speech = e.Result.Text;
switch (speech)
{
case "play next":
Speak.SpeakAsync("playing next");
keybd_event(VK_MEDIA_NEXT_TRACK, 0, KEYEVENTF_EXTENTEDKEY, IntPtr.Zero); //this line is just my "play next" function.
_next_song.RecognizeAsync(RecognizeMode.Multiple); //this line enables a different voice recognition function.
break;
}

//void to continue next song again
private async void _next_song_SpeechRecognized(object sender, SpeechRecognizedEventArgs e)
{
string speech = e.Result.Text;
_recognizer.RecognizeAsyncStop(); //this is my main recognizer that contains all the commands
while (true)
{
if (speech == "one more")
{
Speak.SpeakAsync("sure");
keybd_event(VK_MEDIA_NEXT_TRACK, 0, KEYEVENTF_EXTENTEDKEY, IntPtr.Zero);
return;
}
await Task.Delay(3000);
break;
}
_next_song.RecognizeAsyncCancel();
_recognizer.RecognizeAsync(RecognizeMode.Multiple);
}

问题是，我的代码工作，只是不是我想要的方式，当我说"播放下一个"时，它会播放下一首歌并等待我说"再跳过一次"并再次开始收听，它只是在 3 秒过去时没有打破链条，只有当它听到其他东西时， 然后 3 秒后，它返回到主_recognizer识别功能。

无论如何，我可以在不使用其他语音识别模块的情况下实现后续命令？ 将不胜感激任何帮助！

Answer 1

如果我理解了你的问题，我会提出一个解决方案，所以我认为你不需要使用两个识别器：我只是使用 int 来捕获相位和线程来做循环。

//directives needed for thread
using System.Threading;
using System.Threading.Tasks;
//--------------------------
public int phase;
public bool onemore;
public bool running;
private Thread thread;
public readonly AutoResetEvent _signalGo = new AutoResetEvent(false);
//To put in the constructor of the class
thread = new Thread(new ThreadStart(loop));
private void speechRecognizer_SpeechRecognized(object sender, SpeechRecognizedEventArgs e)
{
string speech = e.Result.Text;
lblDemo.Content = speech;
switch (speech)
{
case "play next":
if (phase != 0) return;
if (!running)
thread.Start();
else
_signalGo.Set();
Speak.SpeakAsync("playing next");
keybd_event(VK_MEDIA_NEXT_TRACK, 0, KEYEVENTF_EXTENTEDKEY, IntPtr.Zero);
break;
case "one more":
if (phase != 1) return;
onemore = true;
Speak.SpeakAsync("sure");
break;
}
}
public async void loop()
{
running = true;
while (running)
{
phase = 1;
await Task.Delay(3000);
//if sou say onemore=true, enter in loop
while(onemore)
{
onemore = false;
//if you say again onemore before end of 3s, so reloop
keybd_event(VK_MEDIA_NEXT_TRACK, 0, KEYEVENTF_EXTENTEDKEY, IntPtr.Zero);
await Task.Delay(3000);
} 
phase = 0;
if (!running) break;
_signalGo.WaitOne();//wait _signalGo.set() to continue
if (!running) break;
}
}

---

//Dont forget to dispose the resources at the end of program
// for eaxmple in the destructor
// if your class is named toto
//destructor is ~toto
public class toto
{
//constructor
public toto()
{
}
//destructor
~toto()
{
_signalGo.Set();
running = false;
_signalGo.Dispose();
speechRecognizer.Dispose();
}
}