====== Custom Navigation Voices ======

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It is possible to use custom navigation voices in the [[manual:user_guide:functions:navigation|Navigation]] function. This method shows how to convert voice files from TomTom application to the format usable by Locus Map.

==== Get some voice ====

Firstly, you need to have some TomTom voice file. One usable site with a lot of free voices is for example [[http://tomtom.gps-data-team.com/tomtom_voices.php|here >>]].

==== Convert voices to a usable format ====

  * at first, prepare necessary material - voice data and Viftool software
    * download a voice template and save it to some a new folder (e.g. C:\my_tomtom_voice). You need to save these 3 voice related files: **VIF**, **CHK** and **BMP** file.
    * download **{{:manual:advanced:map_tools:viftool.1.3.zip|VIFTOOL}}**
    * install downloaded Viftool to the folder with the voice template.
    * go to **Start** > **Run** > **CMD**
    * type //cd c:\viftool\// in the command window 
    * then type //viftool.exe split dataXX.chk// to extract all **ogg** voice files from tomtom **CHK** file.
    * this way you’ll get directory full of *.ogg files. And now simply pack all these .ogg files into one .zip file (only files, not whole directory).

  * as a result you have four files:
    * **dataXX.bmp** - image (optional)
    * **dataXX.chk** - original voices (not needed)
    * **dataXX.vif** - description file (required)
    * **dataXX.zip** - voices (required)

Copy *.VIF and *.ZIP (you can also *.BMP) files directly into //Locus/data/nav_audio// directory in your phone.