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Software
dsPIC30F Speech Recognition Library
The dsPIC30F Speech Recognition Library provides
voice control of embedded applications that require an
alternative user interface. With a vocabulary of up to
100 words, the Speech Recognition Library allows
users to control their applications vocally. The Speech
Recognition Library is an ideal front-end for hands-free
products, such as modern appliances, security panels
and cell phones. The Speech Recognition Library has
very modest memory and processing requirements.
Features
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Speaker-independent recognition of isolated words
Hidden Markov Model-based recognition system
Recognition time < 500 msec
Master library of 100 common words
Windows ? operating system-based utility allows you
to create a custom library from the master library
Additional words can be added to the master library
(fee-based)
No speaker training is required
US English language support
Data tables can be stored in external memory
Optional keyword activation and silence
detection
Optional system self-test using a predefined
keyword
Flexible API
Full compliance with Microchip MPLAB ? C30
language tools
“dsPIC30F Speech Recognition Library User ’s
Guide”
The Speech Recognition Library provides isolated,
speaker-independent word recognition of US English. It
allows the user to control an application through a set
of fixed, voice commands.
The library has already been pretrained by a
demographic cross-section of male and female US
English speakers. Conveniently, no training is required
for end users of the product.
The library samples speech data from a voice codec
connected to the dsPIC30F device’s Data Converter
Interface. The data is processed a frame at a time, and
when a word ending is detected, the received word is
identified using Hidden Markov Model processing. After
the library identifies the word, your application may
then take some predefined action.
The Speech Recognition algorithm is written in
Assembly language to optimize performance and
minimize RAM usage. A well-defined API makes it
easy to integrate the Speech Recognition Library with
your application. Library functions let your application
easily disable and enable speech recognition. The
library lets your other system processing operations
take place without disrupting speech recognition.
Ordering Information:
SW300010-EVAL dsPIC30F Speech Recognition Library Software License (Evaluation Copy)
SW300010
SW300011
SW300012
AC300031
DS51465
dsPIC30F Speech Recognition Library Software License (Up to 5K units)
dsPIC30F Speech Recognition Library Software License (5K to 25K units)
dsPIC30F Speech Recognition Library Software License (25K to 100K units)
Accessory Kit (includes: microphone, headset and 6.144 MHz clock oscillator)
“dsPIC30F Speech Recognition Library Product Overview” (Available at: www.microchip.com)
? 2005 Microchip Technology Inc.
DS30177T-page 15
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相关PDF资料
DB25-ALL
SURGE SUPPRESSOR DB25M/F PROG.
DB25-PAR
SERIAL PROT SURGE PROT PARALLEL
DB25
SURGE SUPPRESSOR RS-232 DB25M/F
DB3TG
DIAC TRIGGER DIODE 150MW DO-35
DC1041A-A
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DC1083A-B
BOARD DEMO LTM4603HV
DC1194A
BOARD EVAL LTM8020
DC1261A
BOARD DEMO LTM8022
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