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# Combine Classifiers into a Language Identification Set

You must combine the individual language classifiers into a single language identification set. To identify the language being spoken, IDOL Speech Server compares audio against this set.

To combine the language classifiers into a set

- Create a list of classifiers. Use the following format for each list entry:

      LanguageName;ClassifierName;LanguageWeight

  where:

  `LanguageName` | is the name that is reported in the results.
  `ClassifierName` | is the name of the trained classifier file for this language. It is not necessary to specify the full path to the classifier in this list, because you can use an action parameter to provide this information when you use the classifier set.
  `LanguageWeight` | is the weight to apply to the language. IDOL Speech Server uses weights to scale the scores for each language before it compares them. You can leave this field empty before you run the `LangIdOptimize` task, which generates optimized weights (see Optimize the Language Identification Set).

  Note: Separate the three fields with semi-colons (;).

  For more information about IDOL Speech Server's list manager, see Create and Manage Lists.

The following example list contains four language classifiers: English, French, German, and Italian.

    English;ENUK.lcf;1.0
    French;FRFR.lcf;1.0
    German;DEDE.lcf;1.0
    Italian;ITIT.lcf;1.0

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