Speech Recognition - Important Concepts in Signal Processing, Image Processing and Data Compression - page 40

Chapter- 7
Speech Recognition
The display of the Speech Recognition screensaver on a PC, in which the character
responds to questions, e.g. "Where are you?" or statements, e.g. "Hello."
Speech recognition (also known as automatic speech recognition or computer speech
recognition ) converts spoken words to text. The term "voice recognition" is sometimes
used to refer to recognition systems that must be trained to a particular speaker—as is the
case for most desktop recognition software. Recognizing the speaker can simplify the
task of translating speech.
Speech recognition is a broader solution which refers to technology that can recognize
speech without being targeted at single speaker—such as a call system that can recognize
arbitrary voices.
Speech recognition applications include voice user interfaces such as voice dialing (e.g.,
"Call home"), call routing (e.g., "I would like to make a collect call"), domotic appliance
control, search (e.g., find a podcast where particular words were spoken), simple data
entry (e.g., entering a credit card number), preparation of structured documents (e.g., a
radiology report), speech-to-text processing (e.g., word processors or emails), and aircraft
(usually termed Direct Voice Input).
History