Voice Extreme™ Module
Voice Extreme™ Module
Speech Recognition Module
Data sheet
Description
Features
The Voice Extreme™ (VE) Module simplifies the
design of speech recognition products by integrating
all key components onto a single board. A low-noise
audio channel and convenient connectors allow
rapid prototyping, less debugging and shorter time to
market.
Full Range of Sensory Speech™ 6 Capabilities
Speaker-independent speech recognition
Speaker-dependent speech recognition and
word spotting
High quality speech synthesis and sound
effects
Speaker verification
Four-voice music synthesis
Voice record & playback
Integrated Solution
VE IC Speech processor & 2Mb Flash
14MHz (main) & 32kHz (time keeping) clocks
11 I/O lines and CMOS RS-232 interface
Microphone preamplifier
Speaker amplifier
Low Power Requirements
Vdd = 2.85V – 3.3V
Idd = 26mA @ 3V (typ. for complete module)
Using the Voice Extreme™ Toolkit, programs can be
downloaded into the VE Module. Modules can then
be unplugged from the Development Board and
wired directly into the final product. In-circuit
reprogramming is also supported.
Through the 34-pin connector, the module offers 11
I/O lines, as well as connections for a power,
microphone, speaker, and logic-level RS232
interface.
The Voice Extreme™ System
Built-in VE-C Interpreter (a subset of ANSI-C),
Dynamic Memory Handler, Speech
Technology Firmware
Works with Voice Extreme™ Toolkit
Modules can be reprogrammed in-circuit
Voice Extreme™ Module Block Diagram
MIC
Speaker
amplifier
MIC
PREAMP
AGC
VE-C Interpreter
P/N 80-0205-C
POWER
RS232
© 2001 Sensory Inc.
Speech Technology
Firmware
I/O
Dynamic Memory
Handler
2Mb
FLASH
SPEAKER
VE-IC
1
Data sheet
Voice Extreme™ Module
Module Layout
BOTTOM VIEW
TOP VIEW
U1 VE ROM
This 64KB OTP ROM contains the VE-C interpreter, dynamic memory handler and speech technology firmware.
The VE IC includes these features masked into on-chip ROM.
Note that some modules may not include U1, since it is integrated into U2.
U2 VE IC
The Voice Extreme™ Integrated Circuit (VE IC) is the central speech processor. Please refer to the Voice
Extreme™ IC Datasheet for detailed specifications.
Y1 Crystal
A 14.318 MHz crystal establishes the frequency of Timer 1 on the VE IC. Timer 1 is the system clock and is
used for all speech recognition functions.
Y2 Crystal
A 32.768 KHz crystal establishes the frequency of Timer 2 on the VE IC. Timer 2 is useful for timekeeping
applications since it is not interrupted, unlike Timer 1.
Note that Timer 2 is not available on the TQFP versions of the VE IC.
R4 Microphone Gain Resistor
An optional microphone resistor may be added to the VE module to change the microphone gain. From the
factory, the microphone gain is pre-set to a level suitable for arms-length user interfaces with a 2.7K resistor at
R7 and 3.3nF capacitor at C28. If a different microphone gain is desired, proceed in this way:
1. Unsolder and remove R7 and C28
2. Solder a new resistor at R4 (through holes)
3. Solder a new capacitor at C28 (surface mount part
Select the values of R4 and C28 from the table below:
R4
1K
1.5K
2.2K
2.7K
3.9K
4.7K
2
C28
10nF
6.8nF
4.7nF
3.3nF
2.7nF
2.2nF
Microphone Note
Close range or headset
Arms length
Distance
P/N 80-0205-C
© 2001 Sensory Inc.
Data sheet
Voice Extreme™ Module
U3 2MB Flash Memory
This memory is required on the VE module and all VE applications. Because of the powerful dynamic memory
handler of VE system software, this Flash is designed to store the application code, speaker independent weight
sets, speech templates, record and playback data, program data, and music data.
J1 Voice Extreme™ Module Connector
A standard 34-pin header with 0.1" centers to carry signals between the Development Board and the Voice
Extreme™ module. This header has pins on 0.1” centers, and interfaces the VE module with the Development
Board. It is referenced as J3 on the Development Board and J1 on the VE Module.
Pin
1
2
3
4
5
Description Pin Description
GND
13 DOWNLOAD
GND
14 RESET
GND
15 VDD
MIC-IN
16 PDN
N.C.
17 P0-0
Pin
25
26
27
28
6
DAC-OUT
18 P0-1
Serial port output to Host (XMT)
30 P1-5
7
GND
19 P0-2
8
GND
20 P0-3
31 P1-6
32 P1-7
Serial port input from Host (RCV)
Description
P1-0
P1-1
P1-2
P1-3
29 P1-4
Serial port enable, output (0=off, 1=on)
21 P0-4
33 GND
P0-5
10 AUDIO-OUT 22 DO NOT USE (Flash address bit A16) 34 PND
9
AUDIO-RET
11 PWM0
23 P0-6
DO NOT USE (Flash address bit A17)
12 PWM1
24 P0-7
Note, when designing your own hardware, note that the above table references the VE Module (NOT the
development board).
Note also that if an application is stand alone, the two serial I/O pins, P0.0 and P0.1, and the serial port enable,
P1.7, may be used for other purposes; however, programs will download via asynchronous serial I/O.
Since I/O pins P0.5 and P0.6 are connected to the address bus of the Flash memory, they should not be used
under any circumstances.
4X5 Matrix Keypad Support
The VE Module supports a 4x5 keypad that can be controlled using functions built into the VE-C language.
When the keypad is scanned, the columns are driven (active low), the rows are sensed (pulled high) and all
previous configuration and output values for these pins are saved and restored. The keypad I/O pinouts are as
follows:
Pin
P0.3
P1.3
P0.4
P1.4
P0.5
1
4
7
*
P1.5
2
5
8
0
P0.6
3
6
9
#
P1.6
A
B
C
D
P0.2
E
F
G
H
General Purpose I/O
The VE Module has 11 general-purpose I/O pins. Each line can be programmed as an input with a weak pull-up
resistor (~150k ohm), input with a strong pull-up resistor (~10k ohm), input without pull-ups, or as an output.
© 2001 Sensory Inc.
P/N 80-0205-C
3
Data sheet
Voice Extreme™ Module
Module Dimensions
Module connector
42,55
VE-IC
43,25
3,175
3,175
3,175
1,25
8,25
All units in mm
There are two ways to install the VE Module into target applications:
1. Mount the module in your product using a 34-pin female 0.1” standard header. When the module
header connector is used to connect the module to another board, the mounting holes are normally not
required.
2. Alternatively, It can be mounted upside-down and secured with 4 machine screws and nuts.
Connections can be made to the rest of the application using ribbon cable.
Voice Extreme™ Toolkit
The Voice Extreme™ Toolkit enables quick development of applications using
Sensory Speech™ technologies.
The Voice Extreme™ Toolkit contains:
Voice Extreme™ Development Board
Voice Extreme™ Module
Power supply
Serial cable for PC RS-232 connection
Quick Start Guide
Software CD containing the Voice Extreme™ IDE, Quick Synthesis™,
sample projects, sample data files and documentation
4
P/N 80-0205-C
© 2001 Sensory Inc.
A0
A1
A2
A3
A4
A5
A6
A7
A8
A9
A10
A11
A12
A13
A14
A15
P0-5
P0-6
0.1
33
D2
C16
15pF
0.1
P/N 80-0205-C
MA2J112
A0
A7
A6
A5
A4
A3
A2
A1
A15
A14
A13
A12
A11
A10
A9
A8
0.1
D0
D1
D2
D3
D4
D5
D6
D7
© 2001 Sensory Inc.
1000pF
D0
D1
D2
D3
D4
D5
D6
PWM1
PWM0
DAC-OUT
P0-0
P0-1
P0-2
P0-3
P0-4
P0-5
47
MIC-IN
4.7K
PDN
BCW61D
10K
10
NU
2.2K
NU (through holes)
Data sheet
Voice Extreme™ Module
Module Schematic
5
P1-4
P1-3
P1-2
P1-1
P1-0
P0-7
P0-6
The Interactive Speech™ Product Line
The Interactive Speech line of ICs and software was developed to “bring life to products” through advanced speech
recognition and audio technology.
The Interactive Speech Product Line was designed for consumer telephony products and cost-sensitive consumer electronic
applications such as home electronics, personal security, and personal communication.
The product line includes award-winning RSC series general-purpose microcontrollers and tools, SC series of speech
microcontrollers, plus a line of easy-to-implement chips that can be pin-configured or controlled by an external host
microcontroller. Sensory’s software technologies run on a variety of microcontrollers and DSPs.
RSC Microcontrollers and Tools
The RSC product line contains low-cost 8-bit speech-optimized microcontrollers designed for use in
consumer electronics. All members of the RSC family are fully integrated and include A/D, pre-amplifier,
D/A, ROM, and RAM circuitry. The RSC family can perform a full range of speech/audio functions including
speech recognition, speaker verification, speech and music synthesis, and voice record/playback. The
family is supported by a complete suite of evaluation tools and development kits.
SC Microcontrollers and Tools
The SC-6x product line features the highest quality speech synthesis ICs at the lowest data rate in the industry. The line
includes a 12.32 MIPS processor for high-quality low data-rate speech compression and MIDI music synthesis, with
plenty of power left over for other processor and control functions. Members of the SC-6x line can store as much as 37
minutes of speech on chip and include as much as 64 I/O pins for external interfacing. Integrating this broad range of
features onto a single chip enables developers to create products with high quality, long duration speech at very
competitive price points.
Application Specific Standard Products (ASSPs)
Š Voice Direct™ 364 provides inexpensive speaker-dependent speech recognition and speech synthesis. This easy-touse, pin-configurable chip requires no custom programming and can recognize up to 60 trained words in slave mode,
and 15 words in stand-alone mode. Ideal for speaker-dependent command and control of household consumer products,
Voice Direct 364 is part of a complete product line that includes the IC, module, and Voice Direct 364 Speech
Recognition Kit.
Š Voice Extreme™ simplifies the creation of fully custom speech-enabled products by offering developers
the capability of programming the chip in a high-level C-like language. Program code, speech data, and even
record and playback information can be stored on a single off-chip Flash memory. Based on Sensory's RSC364 speech processor, Voice Extreme includes a highly efficient on-chip code interpreter, and is supported
by a comprehensive suite of low-cost development tools.
Software and Technology
Š Voice Activation™ micro footprint software provides advanced speech technology on a variety of
microcontroller and DSP platforms. A flexible design with a broad range of technologies allows manufacturers
to easily integrate speech functionality into consumer electronic products.
Š Fluent Speech™ small footprint software recognizes up to 50,000 words; offers Animated Speech with the
ability to automate enunciation and articulation; performs text-to-speech synthesis in either male or female voices;
provides noise and echo cancellation, performs Wordspotting for natural language usage; offers telephone barge-in; and
provides continuous digit recognition.
Important notices
Reasonable efforts have been made to verify the accuracy of information contained herein, however no guarantee can
be made of accuracy or applicability. Sensory reserves the right to change any specification or description contained
herein.
1991 Russell Ave., Santa Clara, CA 95054
Tel: (408) 327-9000 Fax: (408) 727-4748
© 2001 SENSORY, INC. ALL RIGHT RESERVED.
Sensory is registered by the U.S. Patent and
Trademark Office.
All other trademarks or registered trademarks are the
property of their respective owners.
www.sensoryinc.com
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