如何在语音到文本应用中实现多线程 [英] how implement multi threading in speech to text application

问题描述

我如何将这个概念语音用于文本应用....

how can i use this concept speech to text application....

推荐答案

看看这些CP文章



C＃Speech to Text [ ^ ]

和

另一种调用UI的方法工人线程 [ ^ ]

Have a look at these CP articles

C# Speech to Text[^]
and
Another way to Invoke UI from a Worker Thread[^]

除了解决方案1.



有一个特定的使用适用于任何线程的语音识别时出现问题，即使这是您的应用程序的起始线程：公寓状态。识别器有一个严重的限制：每个人只能在一个线程中工作，并且这个线程应该是某个公寓状态。此外，我没有在文档中找到它，它只能从与此问题相关的例外中找到。



所以， System.Speech。 Recognition.SpeechRecognizer 需要STA线程， System.Speech.Recognition.SpeechRecognitionEngine MTA。请参阅（此要求未记录：

http://msdn.microsoft.com/en-us/library/system.speech.recognition.speechrecognizer%28v=vs.110%29.aspx [ ^ ]，

http://msdn.microsoft.com/en-us/library/system.speech.recognition.speechrecognitionengine%28v=vs.110%29.aspx [ ^ ]。



现在，这是为什么单独的线程可能很重要的几个原因之一（并且，与其他原因不同，这个绝对是c ritical）。例如，WPF应用程序只能使用 STAThread 。要使用 System.Speech.Recognition.SpeechRecognitionEngine ，您总是需要在不同的线程中使用MTAThread。具体如下：

http://msdn.microsoft.com/en-us/library/system.threading.thread.getapartmentstate%28v=vs.110%29.aspx [ ^ ]。br />


请注意，您无法从同一个线程调用 Thread.SetApartmentState 。它可以通过线程用来启动线程，并且仅在启动之前完成。



现在，两个仅限控制台的应用程序都可以在<$ c $中工作c> MTAThread 和 STAThread 。 System.Windows.Forms 也是如此。如果要在应用程序的各个主线程上执行一个识别器，则需要确保将正确的属性应用于应用程序的入口点方法，例如：

In addition to Solution 1.

There is one specific problem when you use speech recognition which applies to any thread, even if this is the starting thread of your application: apartment states. Recognizers have a serious limitation: each of one can work only in one thread, and this thread should be of one certain apartment state. Also, I did not found this in documentation, it can only be found from exceptions related to this problem.

So, System.Speech.Recognition.SpeechRecognizer requires STA thread, and System.Speech.Recognition.SpeechRecognitionEngine MTA. Please see (this requirement is not documented:
http://msdn.microsoft.com/en-us/library/system.speech.recognition.speechrecognizer%28v=vs.110%29.aspx[^],
http://msdn.microsoft.com/en-us/library/system.speech.recognition.speechrecognitionengine%28v=vs.110%29.aspx[^].

Now, this is one of the several reasons why a separate thread could be important (and, unlike other reasons, this one is absolutely critical). For example, WPF application can only use STAThread. To use System.Speech.Recognition.SpeechRecognitionEngine, you always need to use MTAThread in a different thread. This is how:
http://msdn.microsoft.com/en-us/library/system.threading.thread.getapartmentstate%28v=vs.110%29.aspx[^].

Note that you cannot call Thread.SetApartmentState from the same thread. It can be done by the thread uses to start the thread, and only before starting it.

Now, both console-only applications can work in both MTAThread and STAThread. Same goes about System.Windows.Forms. If you want to execute one the recognizers on respective main threads of the application, you need to make sure you have correct attribute applied to the entry-point method of the application, for example:

using System;

//...

[STAThread]
static void Main(string[] args) { /* ... */ }

或

or

[MTAThread]
static void Main(string[] args) { /* ... */ }

-SA

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