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Android apps are getting a ‘major’ Google TTS quality upgrade

“Speech Services by Google” is responsible for providing text-to-speech (TTS) and speech-to-text (transcription) capabilities for Android apps. Google is now rolling out a major TTS audio quality upgrade for 64-bit Android devices.

Android text-to-speech is getting “clearer, more natural voices” with a “significant side by side quality increase” touted. A new voice model and synthesizer for 64-bit devices is responsible for the improvement. 

All of Google’s 421 voices across 67 languages have been upgraded. EN-US in particular also benefits from a new default voice that’s “built using fresher speaker data.” Google is also advertising another “drastic improvement” in combination with the main TTS upgrade.

Developers that already use Android TTS and the Speech Services by Google engine don’t have to do anything to get the upgrade as “everything will happen behind the scenes as your users will have automatically downloaded the latest update.”

This update will be rolling out to all 64 bit Android devices via the Google Play Store over the next few weeks as a part of the Speech Services by Google apk. If you are concerned your users have not updated this yet, you can check for the minimum version code ,210390644 on the package com.google.android.tts.

Old EN-US

New EN-US

Old ES-US

New ES-US

Old HI-IN

New HI-IN

Old PT-BR

New PT-BR

According to the Play Store listing, Speech Services TTS is leveraged by:

  • Google Play Books to “Read Aloud” your favorite book
  • Google Translate to speak translations aloud so you can hear the pronunciation of a word
  • Talkback and accessibility applications for spoken feedback across your device
  • …and many other applications in Play Store

More on Android:

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Avatar for Abner Li Abner Li

Editor-in-chief. Interested in the minutiae of Google and Alphabet. Tips/talk: abner@9to5g.com