Google Text-to-Speech

Google Text-to-Speech

Developer(s)	Android, Inc.
Initial release	November 6, 2013
Stable release	3.10.10 / October 10, 2016
Development status	Active
Operating system	Android
Type	Screen reader

Google Text-to-Speech is a screen reader application developed by Android, Inc. for its Android operating system. It powers applications to read aloud (speak) the text on the screen. Currently, the supported languages include Bengali (Bangladesh), Cantonese (Hong Kong), Chinese (China), Chinese (Taiwan) Danish, Dutch, English (Australia), English (India), English (United Kingdom), English (United States), Finnish, French, German, Hindi, Hungarian, Indonesian, Italian, Japanese, Korean, Norwegian, Polish, Portuguese (Brazil), Russian, Spanish (Mexico), Spanish (Spain), Spanish (United States), Swedish, Thai, Turkish, and Vietnamese. Text-to-Speech may be used by apps such as Google Play Books for reading books aloud, by Google Translate for reading aloud translations providing useful insight to the pronunciation of words, by Google Talkback and other spoken feedback accessibility based applications, as well as by third-party apps. Users must install voice data for each language.

Version history

November 2013

• Korean now supported.^[1]

March 2014

• Version 3.0 added support for natural high-quality voices.High quality voices now featured in English (United States) as Female (high quality) whilst English (United Kingdom) also now featured three new high quality voices; Male, Female (high quality) and Male (high quality). These new high quality voices are much larger than the prior versions in terms of file size with 244MB for English US female (high quality) compared to just 6.8MB for the regular female voice version. These high quality voices were added to ensure higher quality pronunciation and enunciation with intonations that are more natural.
• Support for Brazilian, Portuguese and Spanish (United States) bringing the total number of languages supported to nine at this point. (German, English (UK), English (US), Spanish (ES), Spanish (US), French, Italian, Korean, and Portuguese (BR). Only English (US) and English (UK) have high-quality voice packs for now.) German, English UK, English US, Spanish ES, Spanish US, French, Italian, Korean, and Portuguese (BR). Only English US and English UK have high-quality voice packs for now.^[2]
• User Interface tweaks: Due to having multiple voices for some languages a toggle was added to voices with 2 or more voice packs.^[3]

May 2014

• Russian, Dutch, Polish and English (Indian) added to the currently supported list of languages.^[4]

September 2014

• Support for Japanese output added.^[5]

December 2014

• Version 4 Available (For 6.0 Marshmallow and up)
• Support for Hindi and Indonesian output.
• Improved output quality. Standard quality voices now surpass the quality of the high quality voices from previous releases.^[6]

July 2015

• Four new languages now supported: Cantonese (Hong Kong), Mandarin (China), Thai (Thailand) and Turkish (Turkey)
• Bug fixes and other improvements.

February 2016

• Improved voice quality
• Added support for Bengali (Bangladesh), Danish (Denmark), English (Australia), Finnish (Finland), Hungarian (Hungary), Norwegian (Norway), and Mandarin (Taiwan).
• The offline voices can now speak at a faster rate.
• Plus lots of bug fixes and performance improvements.

June 2016

• Added support for Swedish and Vietnamese.
• Bug fixes and improvements

October 2016

• Alternative voice variations now available on every device.
• Added support to amplify speech volume over other audio.
• Extended support for emoji verbalisation in Chinese, Dutch, Danish, English, French, German, Italian, Japanese, Korean, Polish, Portuguese, Russian and Spanish.
• Bug fixes and improvements.

Evolution

Some app developers have started adapting and tweaking their Android Auto apps to include Text to Speech, such as Hyundai in 2015.^[7] Apps such as textPlus and WhatsApp use Text to Speech to read notifications aloud and provide voice-reply functionality.

The Google Chrome extensions "Chrome Speak" and "Speak It" can read aloud any selected piece of text within the browser.^[8][9]

See also

• Speech synthesis
• VoiceOver

References

1. "Google Text-to-Speech engine arrives to Google Play". Android Authority. Retrieved 23 November 2014.
2. Bogdan Petrovan (6 March 2014). "Google updates Text-to-Speech engine with new and high-quality voices". Android Authority.
3. "Google's Text-To-Speech Engine Now Supports Japanese Output". Android Police. Retrieved 23 November 2014.
4. "Google Text-to-Speech updated with new languages, including Dutch, Polish, and Russian". Android and Me. Retrieved 23 November 2014.
5. "Google's Text-To-Speech Engine Now Supports Japanese Output". Android Police. Retrieved 23 November 2014.
6. "Google says Text-to-Speech no longer needs high quality voices in latest update". Android Central. Retrieved 16 December 2014.
7. "Google, Hyundai show off new third-party Android Auto apps". CNET. CBS Interactive. Retrieved 17 January 2015.
8. "How to Enable Text to Speech in Chrome With Chrome Speak". Guidingtech.com. Retrieved 17 January 2015.
9. "Free Technology for Teachers: Speak It - Text to Speech in Google Chrome". Freetech4teachers.com. Retrieved 17 January 2015.