Available for Windows, x64 Portable version.
Windows voices: Arabic, Arabic (Saudi Arabia), Bulgarian, Catalan, Chinese (Simplified), Cantonese, Chinese (Taiwan), Croatian, Czech, Danish, Dutch, English (Australia), English (Canada), English (Great Britain), English (India), English (Ireland), English (United States), Finnish, Flemish, French (Canada), French (France), French (Switzerland), German (Austria), German (Germany), German (Switzerland), Greek, Hebrew, Hindi, Hungarian, Indonesian, Italian, Japanese, Malay, Norwegian, Polish, Portuguese (Brazil), Portuguese (Portugal), Romanian, Russian, Slovak, Slovenian, Korean, Spanish (Spain), Spanish (Mexico), Swedish, Tamil, Thai, Turkish, Vietnamese.
Google voices: Arabic, Bengali, Bulgarian, Catalan, Chinese (Hong Kong), Czech, Danish, Dutch, English (Australia), English (India), English (UK), English (US), Filipino, Finnish, French (Canada), French (France), German (Germany), Greek, Gujarati, Hindi, Hungarian, Icelandic, Indonesian, Italian, Japanese, Kannada, Korean, Latvian, Malay, Malayalam, Mandarin Chinese, Norwegian, Polish, Portuguese (Brazil), Portuguese (Portugal), Punjabi, Romanian, Russian, Serbian (Cyrillic), Slovak, Spanish, Spanish (US), Swedish, Tamil, Telugu, Thai, Turkish, Ukrainian, Vietnamese.
*To use Google TTS You must have a Google account. Currently, Google offers this service for 1 million characters of Wavenet voices and for 4 million characters of Standard voices each month for free. Higher volumes may incur fees. See the price list for more information:
How to add text-to-speech (TTS) voices in Windows
List of supported Windows voices
How to set up google account and PixVis Video Dubber for Google TTS technology