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Microsoft Windows

Get the extension at the Extensions web site. Open the extension with the LibreOffice or Apache OpenOffice program. Approve the extension. Restart the program. 

Built-in Speech

The Read Text Extension uses a script for speech synthesis by default. To reset the extension to the default settings, type random characters in the Read with an external program box and click OK. The extension will display an error message and reset all the settings to their defaults.


Windows 8 and 10 users can download and install different language packs at no additional cost. Many of the languages include a local voice for speech synthesis. Instructions are available at the Microsoft Support site. If you are using an Asian or complex language, make sure you are using Read_Text.0.8.x.oxt or newer.


Install eSpeak. When you install the program, a dialog will ask you to select some voices that will be supported with applications that use SAPI5. Supported languages include Afrikaans, Albanian, Armenian, Cantonese, Catalan, Croatian, Czech, Danish, Dutch, English, Esperanto, Finnish, French, German, Greek, Hindi, Hungarian, Icelandic, Indonesian, Italian, Kurdish, Latvian, Lojban, Macedonian, Mandarin, Norwegian, Polish, Portuguese, Romanian, Russian, Serbian, Slovak, Spanish, Swahili, Swedish, Tamil, Turkish, Vietnamese, and Welsh. Once the SAPI5 voices are installed, you can use the default dialog as shown above to select one of the eSpeak SAPI5 voices. If you want to try out different voices, you can call the espeak program directly:
  • Select some text
  • Show the Read Selection dialog with Tools → Add-Ons → Read Selection...
  • Select Read the Selection with another program
  • Browse to the path to the Espeak application - C:\Program Files\eSpeak\command_line\espeak.exe
  • In the command box, enter -v english -f "(TMP)"
  • Click OK


Instructions for compiling Festival for Windows are available at the Festival website.

Python and SAPI5

Python is a flexible and powerful scripting environment. If you install Python on your computer, you can use it to connect to the Windows native SAPI5 text-to-speech engine.

Find out more...

WScript and SAPI5

WScript is an easy to use scripting environment for Windows computers. If your Windows computer has SAPI5, you can use WScript for text-to-speech.

Find out more...

Use with Web Applications

Web applications let you do on-line translation, read multiple languages and try different voices. Some web applications require that you install Adobe Flash
  • Select some text
  • Show the Read Selection dialog with Tools → Add-Ons → Read Selection...
  • Select Use a web application.
  • Choose or enter a web address with the appropriate parameters. - http://vozme.com/text2voice.php?lang=en&bookmarklet=1&gn=ml&default_language=en&text=(OOO_WEBTEXT)
  • Click OK

For more information about web applications, read Use With Web Applications.

Other Options

Microsoft - Windows 10 Narrator, Windows Narrator, Third Party Applications


You can use different external applications or websites to speak different languages or translate text. If you want to view the dialog to change settings, use Tools - Add-Ons - Read Selection...