Electronics Technology


Speech recognition chip doubles as powerful general purpose embedded controller

19 November 2003 Electronics Technology

Sensory's high quality SC-4x family of integrated circuits were designed to be the highest accuracy single chip speech recogniser available. The RSC-4x also provides a powerful single chip solution for general purpose embedded controller applications, plus features such as speech and music synthesis, and biometric security through speaker verification.

As a speech processor, the RSC-4x offers superior recognition capabilities including robust performance in noisy environments and a large vocabulary of words and phrases. The RSC-4x also provides high-quality speech synthesis at varying data rates from 3-64 Kb per second. Also included on chip is an 8-voice MIDI-like music synthesiser that supports voice overdubbing with music.

The RSC-4x features an 8 bit microcontroller with DSP assist engines, twin DMAs, 16 bit ADC with microphone pre-amp, 10 bit DAC with PWM speaker drivers, as well as 24 configurable I/O lines including two comparator inputs. A realtime clock, general purpose timer, a watch-dog timer, a zero cost on-chip RC oscillator are also included.



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