Google on Tuesday switched on a new program that will dramatically improve the accuracy of its speech recognition service, which allows people to use verbal commands to search the Internet, send an e-mail or post a Facebook update.
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That’s of growing importance to the Mountain View, Calif., search giant, which sees Internet searches on smart phones as a significant part of its business. While the company doesn’t disclose specific numbers, one in four searches on Android devices are now done by voice, and the search volume on Android phones climbed by 50 percent in the first six months of 2010.
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A lot of the world’s information is spoken, and if Google’s mission is to organize the world’s information, it needs to include the world’s spoken information, said Mike Cohen, who heads the company’s speech efforts.
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Users of the latest Android-powered smart phones can now allow Google to recognize the unique pattern of their speech by downloading a new app from the Android Market. The service gradually learns the patterns of a person’s speech and eventually will more accurately understand their voice commands.
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Google’s ambitions don’t stop at improving voice recognition. Its recent purchase of Phonetic Arts, a British company that specializes in speech output, highlights Google’s plans to allow your computer or smart phone to speak back to you, in a voice that will sound increasingly natural, and even human.
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Google earns the vast majority of its revenue through search advertising, and expects a majority of its Internet business to flow through smart phones and other wireless devices in the future, so high quality voice services are of critical importance.
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The linguistic models that Cohen’s team has helped develop over the past six years at Google, based on more than 230 billion searches typed into google.com and speech inflections recorded from millions of people who used…