It is faster for one to speak a search query than to type it out on the screen application. And when one is on the go, speed is much higher per-requisite than anything else. With Voice Search, you can speak into your phone and get results back on the screen quickly and easily.
Voice search android app was available in 29 languages, and in the last release 13 more languages were added, bringing the total to 42 languages and accents in 46 countries. Over 100 million users can now access the Voice Search features.
Peering a little into what went to the design of Voice Search, we come to know that for each new language, initially, hundreds of thousands of utterances were collected from volunteers.
Adding these languages led the engineers and scientists on the task to tackle some unique challenges. Languages like Romanian follow predictable pronunciation rules.
However, others like Swedish required recruitment of native speakers to provide with pronunciations of thousands of words. The scientists then built a machine learning system based on that data to predict how all other Swedish words could be pronounced.
The update has already started to roll out. Getting started with Google Voice Search depends on the type of phone you have. On phones running Android 2.2, or later, if you see microphone icon on Google Search widget on your home screen, you could simply tap the icon to start a voice powered search.
Otherwise, you can install the Voice Search app from Google Play. Only one language can be spoken at a time and you may need to change your language settings to use one of these new languages.
The other side to the use of Voice Search is that the more the number of people uses the facility, the better it gets.