[Sensory® Inc.]

SPEECH RECOGNITION MICROCONTROLLER

The RSC-464 is the newest member of Sensory’s RSC-4x family of speech microcontrollers. The RSC-464 has many features of the RSC-4128, but costs less due to reduced integrated memory.
The RSC-464 is designed to bring high performance speech I/O features to the most cost-sensitive embedded consumer products. The RSC-464 operates in tandem with the radically new FluentChip™ technology, offering the best embedded speech recognition technologies in the industry. FluentChip is capable of accurate speech recognition; voice password; high quality, low data-rate compressed speech; and music synthesis. One or more technologies may be used in an application. Revolutionary Text-to-Speaker-Independent (T2SITM) technology is derived from a Hidden Markov Model-Neural Net hybrid, allowing the creation of SI recognition sets in minutes by simply entering text.

FEATURES
WIDE RANGE OF FLUENTCHIP TECHNOLOGY CAPABILITIES
➢ Noise-robust Speaker Independent and Speaker Dependent recognition
➢ Over 7 language models now available for international use
➢ Speaker Verification – voice password biometric security
➢ Word Spotting and Continuous Listening recognition options
➢ High quality, 2.4-10.8 kbps speech synthesis & sound effects, with Sensory SX™ synthesis technology
➢ Music synthesis – MIDI-compatible, with up to 8 voices and drum tracks
➢ Voice Record & Playback (voice memo)
➢ Audio Wake Up from sleep – whistles or claps wake the processor

INTEGRATED SINGLE-CHIP SOLUTION
➢ 8-bit microcontroller; fully nested interrupt structure with up to 8 sources
➢ On-chip microphone pre-amp, 16 bit ADC, 10 bit DAC & PWM (30% louder than previously available)
➢ Independent, programmable Digital Filter engine
➢ Twin-DMA, vector math accelerator, and multiplier
➢ Uses low cost 3.58MHz crystal (internal PLL); optional 32KHz crystal input for real time clock
➢ 2.8 KB total RAM (256Bytes user-RAM); includes on-chip storage for SD or SV template
➢ Five timers - 3 General Purpose (GP), 1 Watchdog & 1 Multi-Tasking (MT)
➢ Code security - no ROM dump capability
➢ 16 configurable I/O lines with 10 mA (typical) outputs; includes 4 analog comparator inputs
➢ Low EMI design for FCC and CE requirements

LONG BATTERY LIFE
➢ 2.4 – 3.6V operation
➢ 10mA (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.