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Voice Input and Control Systems

Voice Input and Control Systems. Cherry Abenojar Derek Johnson Melisa Moore David Prill Enayat Qayumi David Walden. Objectives. History of voice recognition systems Applications Comparative systems analysis Safety analysis Our recommendation for Megin. History. Raymond Kurzweil

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Voice Input and Control Systems

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  1. Voice Input and Control Systems Cherry Abenojar Derek Johnson Melisa Moore David Prill Enayat Qayumi David Walden

  2. Objectives • History of voice recognition systems • Applications • Comparative systems analysis • Safety analysis • Our recommendation for Megin

  3. History • Raymond Kurzweil • character recognition & print-to-speech reading machine( 1976) • Automatic speech recognition (1985) • 1000 words • Faster & more affordable computers • Discrete dictation recognition (1990’s) • Continuous dictation (circa 1992)

  4. Applications • Medical Staff • Control of surgical microscopes in operating rooms • Disabled Persons • Control of household appliances • Control electrical functions in automobiles • Control of power wheelchairs

  5. Katalavox • Self-contained package • Speaker-dependant system • Isolated word recognizer • Fast response time (50 ms) • Can work in noisy environments • $6000 • Limited to five functions

  6. Dragon Systems • Dragon Tools - custom control for speech • Dragon Dictate • Visual C++/Visual Basic • $295 • Dragon Speech Tool - vocabulary development kit • trainable to individual’s pronunciation • multiple pronunciations for each word • $295

  7. KURZWEIL: VoiceCommands • Understands natural commands (continuous speech) • Software Development Kits: • ASR 1600 -- manipulate command and control engine • $2000 • ASR 1500 -- flexible speech recognition engine • $1600

  8. Safety AnalysisPossible Failure Modes • Software misinterprets command • Processes command too slowly • Operator gives wrong command • Accepts command from non-user • Software misinterprets conversation as commands

  9. Recommendation • Overpowering system with RAM • Dragon Systems vs Kurzweil • Dragon Systems = Less expensive

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