# DefaultLanguageType

The `DefaultLanguageType` configuration parameter defines the language type (language and encoding) to use for documents of unspecified language.

IDOL Server uses this language type for documents when:

- it cannot read the language type of a document from a specified field.

- the `LanguageType` parameter is not specified in the action.

- Automatic Language Detection is disabled.

The parameter also specifies the default for the `LanguageType` parameter in actions such as `Query` and `Summarize`.

If you do not set `DefaultLanguageType` or specify the language type in actions, IDOL Server uses the first language type defined in the `[MyLanguage]` section.

NOTE: If the encoding of a document is found, but the language is not, IDOL Server can apply a `[General]` language, if it is defined, and if Automatic Language Detection is activated.

Related Topics

- Automatic Language Detection
- Language Indexing Process

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