# SpeechError

> Represents an error in a speech recognition system.

## Definition

* **Type:** Enum
* **Namespace:** [UnityEngine.Windows.Speech](/engine/6000.7/script-reference/unityengine/windows/speech.md)
* **Assembly:** UnityEngine.CoreModule

```csharp
public enum SpeechError
```

## Fields

| Value                                                                                                                            | Description                                                             |
| -------------------------------------------------------------------------------------------------------------------------------- | ----------------------------------------------------------------------- |
| [AudioQualityFailure](/engine/6000.7/script-reference/unityengine/windows/speech/speecherror/audioqualityfailure.md)             | Speech recognition engine failed because the audio quality was too low. |
| [GrammarCompilationFailure](/engine/6000.7/script-reference/unityengine/windows/speech/speecherror/grammarcompilationfailure.md) | Speech recognition engine failed to compiled specified grammar.         |
| [MicrophoneUnavailable](/engine/6000.7/script-reference/unityengine/windows/speech/speecherror/microphoneunavailable.md)         | Speech error occurred because a microphone was not available.           |
| [NetworkFailure](/engine/6000.7/script-reference/unityengine/windows/speech/speecherror/networkfailure.md)                       | Speech error occurred due to a network failure.                         |
| [NoError](/engine/6000.7/script-reference/unityengine/windows/speech/speecherror/noerror.md)                                     | No error occurred.                                                      |
| [TimeoutExceeded](/engine/6000.7/script-reference/unityengine/windows/speech/speecherror/timeoutexceeded.md)                     | A speech recognition system has timed out.                              |
| [TopicLanguageNotSupported](/engine/6000.7/script-reference/unityengine/windows/speech/speecherror/topiclanguagenotsupported.md) | Supplied grammar file language is not supported.                        |
| [UnknownError](/engine/6000.7/script-reference/unityengine/windows/speech/speecherror/unknownerror.md)                           | A speech recognition system has encountered an unknown error.           |