Spoken dialog system

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A spoken dialog system is a computer system able to converse with a human with voice. It has two essential components that do not exist in a text dialog system: a speech recognizer and a text-to-speech module.


Types of systems[edit]

Spoken dialog systems vary in their complexity. In general, the informational dialog system is the most simple one, and it gradually goes up to the most complex type, the entertainment dialog system.

  • Informational: Examples include stock quotes, credit card and bank information. This also include Google 411 and Tellme directory assistance.
  • Transactional: Examples include magazine subscription, and bank transaction.
  • Diagnostic: Technical support.
  • Educational/Tutoring: Tutoring system for physics and language learning.
  • Entertainment and chatting