system.speech.synthesis中的访问冲突异常

Question

using (_speech)
{
    _speech.SelectVoice("Anne");
    _speech.SpeakCompleted += OnSpeakCompleted;
    _speech.Rate = Convert.ToInt32(Rate);
    _speech.Volume = Convert.ToInt32(Volume);
    _speech.SpeakAsync(text);
}

我得到了这个错误：

System.AccessViolationException was unhandled
Message=Attempted to read or write protected memory. This is often an indication that other memory is corrupt.
Source=System.Speech
StackTrace:
       at System.Speech.Internal.ObjectTokens.ObjectToken.ISpObjectWithToken.SetObjectToken(ISpObjectToken pToken)
       at System.Speech.Internal.ObjectTokens.ObjectToken.CreateObjectFromToken[T](String name)
       at System.Speech.Internal.Synthesis.VoiceSynthesis.GetComEngine(VoiceInfo voiceInfo)
       at System.Speech.Internal.Synthesis.VoiceSynthesis.GetProxyEngine(VoiceInfo voiceInfo)
       at System.Speech.Internal.Synthesis.VoiceSynthesis.ThreadProc()
       at System.Threading.ThreadHelper.ThreadStart_Context(Object state)
       at System.Threading.ExecutionContext.runTryCode(Object userData)
       at System.Runtime.CompilerServices.RuntimeHelpers.ExecuteCodeWithGuaranteedCleanup(TryCode code, CleanupCode backoutCode, Object userData)
       at System.Threading.ExecutionContext.RunInternal(ExecutionContext executionContext, ContextCallback callback, Object state)
       at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean ignoreSyncCtx)
       at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state)
       at System.Threading.ThreadHelper.ThreadStart()
InnerException: 

该错误在创建语音合成器的对象时不会发生，但在使用时会发生错误。Fx。

有谁有解决这类问题的办法吗？解决方案？提示？有什么可以帮助解决这个烦人的问题的吗？

Answer 1

仅供猜测，您正在调用_speech.SpeakAsync(text)；这意味着您正在使用语音异步，在下一行中，您将通过关闭using来释放_speech对象。我可以想象，这可能会导致问题。在得到处理结果后，您应该释放_speech对象。