RSC4128 Datasheet, PDF (1/49 Pages) List of Unclassifed Manufacturers – Speech Recognition Processor

RSC-4128
Speech Recognition Processor
Data Sheet
General Description
The RSC-4128 represents Sensory’s next generation
speech and analog I/O mixed signal processor. The
RSC-4128 is designed to bring advanced speech I/O
features to cost sensitive embedded and consumer
products. Based on an 8-bit microcontroller, the RSC-
4128 integrates speech-optimized digital and analog
processing blocks into a single chip solution capable
of accurate speech recognition; high quality, low
data-rate compressed speech; and advanced music.
Products can use one or all features in a single
application.
The RSC-4128 supports Sensory Speech™ 7
technology, which includes advanced speech
algorithms that add features and improve
performance. Capable of running both new HMM and
enhanced neural network technologies, accuracy in
all kinds of noise is dramatically improved. New
Speaker Verification technology is perfect for voice
password security applications that must work in
noisy environments. New high quality compressed
speech technology reduces data rates by 5 times.
New 8 voice MIDI-compatible music includes drum
tracks, effectively increasing instruments beyond 8.
Simultaneous music and speech rounds out the
Sensory Speech™ 7 technology.
The RSC-4128 also supports the revolutionary
capability of creating speaker independent
recognition sets by simply typing in the desired
recognition vocabulary! A few keystrokes creates a
recognition set in seconds without the wait or cost of
recording sessions to train the recognizer, speeding
time to sales.
A new and unique Audio Wakeup feature listens
while the RSC-4128 is in power down mode. When
an audio event such as a clap or whistle occurs,
Audio Wakeup will wakeup the RSC-4128 for speech
or application tasks. Audio Wakeup is perfect for
battery applications that require continuous listening
and long battery life.
In addition to improved recognition performance, the
RSC-4128 provides further on-chip integration of
features. A complete speech I/O application can be
built with as few additional parts as a clock crystal,
speaker, microphone, and few resistors and
capacitors.
Moreover, the RSC-4128 provides an unprecedented
level of cost effective system-on-chip (SOC)
integration, enabling many applications that require
DSP and/or audio processing. The RSC-4128 may
be used as a general-purpose mixed signal
processor platform for custom algorithms,
technologies and applications.
Features
Full Range of Sensory Speech™ 7 Capabilities
Enhanced Word Spotting capability (10 SI or 4 SD
words) in parallel
Noise robust Speaker Independent, Dependent &
Continuous Listening recognition
Speaker Verification (SVWS) – Noise robust voice
biometric security
High quality, 3.7-7.8 kbps speech synthesis & sound
effects with Sensory “SX” synthesis technology
8 voice MIDI-compatible music synthesis coincident with
speech; drum track feature enables additional voices
Voice record & playback
Audio Wakeup from sleep
Integrated Single-Chip Solution
8-bit microcontroller
ROMless, 128KByte and 256KByte ROM options
16 bit ADC, 10 bit DAC and microphone pre-amplifier
Independent, programmable Digital Filter engine
4.8 KBytes total RAM (256Bytes “user” application RAM)
Five timers (3 GP, 1 Watchdog, 1 Multi Tasking)
Twin-DMA, Vector Math accelerator, and Multiplier
Built-in Analog Comparator Unit (4 inputs)
External memory bus: 20-bit Address(1Mbyte), 8-bit Data
On chip storage for SD, SV, templates (10 templates)
Code security through no ROM dump capability
Uses low cost 3.58MHz crystal (internal PLL)
Low EMI design for FCC and CE requirements
24 configurable I/O lines with 10 mA (typical) outputs
Fully nested interrupt structure with up to 8 sources
Optional Real Time Clock
Long Battery Life
2.4 – 3.6V operation
12mA (typical) operating current at 3V
2 low power modes; 1 µA typical sleep current
Full Suite of Quick & Powerful Tools
Quick Text-to-SI (T2SI) text entry to build noise robust SI
recognition sets – low cost & push-button – no recording!
Quick Synthesis for push-button speech compression
Integrated Development Environment, C Compiler,
Debugger & In Circuit Emulator from Phyton, Inc.
© 2004 Sensory Inc.
P/N 80-0206-J
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