Voice search

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Voice search, also called voice-enabled search, allows the user to use a voice command to search the Internet, or a portable device. Currently, voice search is commonly used in (in a narrow sense) "directory assistance", or local search. Examples include Google 411, Tellme directory assistance and Yellowpages.com's 1-800-YellowPages.

In a broader definition, voice search include open-domain keyword query on any information on the Internet, for example in Google Voice Search, Cortana and Amazon Echo. Given that voice-based systems are interactive, such systems are also called open-domain question answering systems.

Voice search is often interactive, involving several rounds of interaction that allows a system to ask for clarification. Voice search is a type of dialog system.


  • Ye-Yi Wang, Dong Yu, Yun-Cheng Ju, Alex Acero, An Introduction to Voice Search, IEEE Signal Processing Magazine (Special Issue on Spoken Language Technology), Institute of Electrical and Electronics Engineers, Inc., May 2008
  • J. Sherwani, Dong Yu, Tim Paek, Mary Czerwinski, Yun-Cheng Ju, and Alex Acero. 'VoicePedia: Towards Speech-Based Access to Unstructured Information', Proceedings of the 8th Annual Conference of the International Communication Association (Interspeech 2007). Antwerp, Belgium, August, 2007