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# Create the Phoneme Time Track File

IDOL Speech Server stores phoneme time track information in an .fmd file. You process an individual audio file to create a phoneme time track file. You can then search this file, or combine time track files for multiple audio files into a single file, which you can then search.

To create a phoneme time track file for an audio file

- Send an `AddTask` action to IDOL Speech Server, and set the following parameters:

  `Type` | The task name. Set to `CreateFMD`.
  `File` | The audio file to process. To restrict processing to a section of the audio file, set the `StartTime` and `EndTime` parameters. For more information, see the IDOL Speech Server Reference).
  `Lang` | The phonetic phrase match language pack to use. For more information about available language packs, see Supported Resources.
  `Out` | The name of the phoneme time track file to produce.

For example:

    http://localhost:15000/action=AddTask&Type=CreateFMD&File=C:/myData/Speech.wav&Lang=ENUS-pm&Out=Speech1.fmd

This action processes the `Speech.wav` file to produce the `Speech1.fmd` time track file, using the `ENUS-pm` language pack.

This action returns a token. You can use the token to:

- Check the task status. See Check the Status of a Task.
- Retrieve the phoneme time track file. See Get Task Results.

To combine multiple phoneme time track files

1. Create a list that contains the names of the individual time track files to combine. Each entry in the list must be on a separate line, and must consist of label and file name pairs separated by a semicolon. The label corresponds to the name to give to the file, and the file names correspond to the full path of the files to be combined. For example:

       Label1;filename1
       Label2;filename2
       ...

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

2. Send an `AddTask` action to IDOL Speech Server, and set the following parameters:

   `Type` | The task name. Set to `CombineFMD`.
   `ListFile` | The list that specifies the individual time track files to combine.
   `ListPath` | The path to the directory that contains the phoneme time track files.
   `FileOut` | The name of the combined phoneme time track file to produce.

For example:

    http://localhost:15000/action=AddTask&Type=CombineFMD&ListFile=ListManager/fmdList&ListPath=C:\PHRASESEARCH\fmd&FileOut=myData.fmd

This action combines the individual phoneme time track files specified in the `fmdList` list to produce the single file `myData.fmd`.

This action returns a token. You can use the token to:

- Check the task status. See Check the Status of a Task.
- Retrieve the phoneme time track file. See Get Task Results.

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