Speech recognition chip is divided into specific human speech recognition (SD) chips, non-specific human speech recognition (SI) chips and WS series chips:
Application fields:
High-intelligent toys (such as dolls or speech controlled toy cars be able to communicate with children etc.), electronic speech controlled automobile navigation system (input geographical names and a variety of commands through speech), hands-free automobile phone (speech dialing), intelligent speech control of household appliances (such as air conditioners, refrigerators, sterilization cabinets, washing machines, lights, etc.), mobile phones (such as speech dialing), PDA, etc.;
features of non-specific human speech recognition (SI) chips:
It is able to conduct speech recognition of non- specific people with a large vocabulary, which contains 1000 Chinese or English phrases, All Mandarin or English can be identified with a high recognition rate more than 96%, the duration of its’ identifying key words or phrases is about 3 seconds (about 10 characters). It has a significant anti-noise performance which is fully recognizable below 30 dB. In a noisier environment at about 30 to 50 dB, the recognition rate can maintain more than 90%. External FLASH memory expansion allows your arbitrarily adding or revising the warning tone which can be phrases, songs and a variety of sounds, etc. All kinds of peripherals (keyboard, LCD, I / O ports and serial output), make it convenient for your secondary development.
Specific human Speech Recognition (SD) chip features:
16-bit MCU, high-speed processing speech signals allows speeches to be recognized without the feeling of delay. A specific person may be identified 200 speech commands with a recognition rate as high as 98%. The entire system has a certain anti-noise performance; in some noisy environments, it still maintains a high recognition rate. After recognizing, the chip will come return a large number of warning tones, which allows you to communicate with the chip intimately. Various peripherals (keyboard, LCD, I / O ports and serial output) facilitate your secondary development.
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