HVAC Control in the New Millennium.pdf - HVAC.Amickracing

HVAC Control in the New Millenniumhears and performs the associated command. If multiple words are spokento an isolated-word recognition system, it treats them as a singleword or command.Many word recognition systems operate with isolated words.These may be speaker-dependent or speaker-independent. These systemshave been used for giving simple commands to a machine or robot.An isolated-word, speaker-independent voice recognition integratedcircuit like the VCP200 can understand the words go, stop, leftturn, turn right, and reverse. It can also understand yes/no or on/off.Olivetti of Italy has worked on a listening and talking machine thatcan function as a listening typewriter. It acts as an isolated-word,speaker-independent word recognition system with a vocabulary of10,000 words. When a word is first spoken, the machine selects the bestthree or four candidates for the actual word and places the likeliest ofthese in the text. If later words give a better clue to the word just spoken,the machine goes back and changes that word in the text.Figure 6-1. Isolated-word recognition system©2001 by The Fairmont Press, Inc. All rights reserved.