EM8V061 Speaker Off-line Speech Recognition Solution

Em8v061 speaker independent offline speech recognition scheme, using tssop28 pin chip, has the function of recognition and broadcast. It needs external spi-flash to store more command entries or voice broadcast content.
It is generally recommended to use the combination of module and MCU to complete all functions of the product. For applications with simple functions, such as voice switch lamp, voice control socket switch, light brightness adjustment, etc., all functions can be completed directly by voice chip without additional MCU.

Electrical characteristics

★Power management

-Working voltage: 1.8V ~ 5.5V, generally 3.3V

-Sleep current: < 7ua

-Wake up mode: can interrupt from any GPIO, RTC, or WDT

★Identification

-Fixed entry, speaker independent recognition

-It can recognize 6-9 entries (three words are recommended for each entry)

-Recognition environment: quiet and echoless

-Recognition effect: in quiet and anechoic environment, the recognition rate can reach 90% or more within 2 meters

-Identify languages: can recognize 32 languages, such as English, Chinese, Japanese, Cantonese, etc. (can not identify multiple languages at the same time, that is, one module can not recognize Chinese, English, Japanese at the same time)

★Audio output

-PWM output, can directly drive 8 euro 0.5W horn

-Audio output content needs to be placed in the SPI plug-in_ In flash

★Low voltage reset: 1.6V

★Built in LDO

-It can provide 25mA load current at 3.3V

-Configurable output voltage: 8 options 1.5v/1.7v/1.8v/2.4v/2.5v/2.7v/3v/3.3v, the default is 3.3V

★Operating temperature: - 100C ~ + 700C

Entry introduction:

Entries refer to the identification instructions that we want to say. We can customize all kinds of regular entries according to the requirements of customers. If you need special entries in small languages, please contact our customer service directly for confirmation.
The standard module provides the following test entries by default. If you need other terms, please contact our customer service.