Standard categories allow you to easily customize the context of your translation by narrowing the scope of the statistical analysis that Microsoft Translator uses to translate your text. With standard categories, you can tell Microsoft Translator what type of content is being translated to improve its accuracy.
Standard categories can be used with the Microsoft Translator Text API or in any Translator supported product that allows you to enter a category ID including the On Premise version of SharePoint and the Multilingual App Toolkit.
The speech category is used to translate spoken text, such as transcripts, which in most cases can be very different from the written text. The speech category supports the same languages as the Conversation Languages.
|Arabic (Modern Standard)|
The tech category will improve translation quality on all high-tech related content such as software, hardware, networking, etc.
To see developer oriented language lists, such as language codes, refer to Microsoft Translator Documentation.