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

Artificial Intelligence, Fuzzy Logic and ControlTable 6-1. Typical Integrated Circuit Phonemes————————————————————————————————Hexadecimal Phonemes Meaning orAddressSound————————————————————————————————00 PA1 Pause 10 MS01 PA2 Pause 30 MS02 PA3 Pause 50 MS03 PA4 Pause 200 MS3A OR Store3B AR Alarm3C YR Clear————————————————————————————————Producing the word six is more complex. It requires:• two SS sounds as in vest,• two IH sounds as in sit,• a pause of 50 milliseconds,• KK sound as in sky and• SS sound as in vest.Using phonics requires some processing time.Most phonic integrated circuits cannot remember a series of commands.They work on only one command at a time. Additional circuitsare required to get the integrated circuit to produce more than isolatedsounds.The CTS256A-AL2 text-to-speech controller IC handles many ofthe support functions for the SP0256-AL2 Speech synthesizer IC. It acceptsASCII characters as input and outputs the phoneme codes to theSP0256-AL2. The CTS256SA-AL2 furnishes a buffer for the ASCII characters,and it can forward the characters for pronunciation as single letters,single words, or groups of words separated by appropriate punctuationmarks.The sounds in an integrated circuit are always pronounced thesame way each time. While the base frequency of the voice can be varied,it is still not a pleasant voice. The phonemes do not represent regionalspeech differences and do not handle accents well.These phonemes are made for American English and if the speech©2001 by The Fairmont Press, Inc. All rights reserved.