Voice Input and Control Systems

spectacularscarecrowAI and Robotics

Nov 17, 2013 (3 years and 4 months ago)

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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


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)


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

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

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

KURZWEIL: Voice
Commands


Understands natural commands (continuous
speech)


Software Development Kits:


ASR 1600
--

manipulate command and control
engine


$2000


ASR 1500
--

flexible speech recognition engine


$1600


Safety Analysis

Possible Failure Modes


Software misinterprets command


Processes command too slowly


Operator gives wrong command


Accepts command from non
-
user


Software misinterprets conversation as
commands

Recommendation


Overpowering system with RAM


Dragon Systems vs Kurzweil


Dragon Systems = Less expensive