음성인식 모듈 VB-02-Kit -오프라인
(Offline Voice Recognition Kit -VB-02-Kit)
개요
- 본 제품은 음성인식 모듈 VB-02-Kit -오프라인입니다.
- 네트워크 연결 없이 음성인식처리가 가능한 제품입니다.
- Ai-Thinker사의 VB-02모듈을 장착하고 있습니다.
- 스피커와 마이크를 포함하고 있습니다.
특징
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Key technical indicators
Ø Adjustable recognition distance: support 5 meters recognition distance 1
Ø Background noise suppression: steady state, dynamic noise, environmental noise suppression>20dB
Ø Local speech recognition (based on the latest TDNN deep neural network recognition algorithm), support pure offline recognition
Ø The comprehensive recognition rate can reach more than 98%
Ø Recognition time is less than 100 ms
Ø Very low misjudgment rate
Ø Up to 50 entries
Kernel
Ø Integrated TG head 32-bit Xuantie 804 processor frequency up to 240MHz
Ø Adopt 3-4 stage variable length pipeline, equipped with DSP calculation engine and MCA algorithm hardware accelerator supporting NN
Ø Support 32 interrupt nesting, each interrupt has corresponding priority
Ø Support JTAG debugging and hardware breakpoints
Storage
Ø Integrate 128KB SRAM
Ø 8KB ROM for Boot
Ø Built-in 2MB SPI FLASH
Audio
Ø Internally integrated audio AD/DA, can be connected to analog PA and MIC
Power
Ø Internal integrated LDO, 3.3V input, default output 1.2V
Ø Built-in watchdog monitor WDT
Timing and control
Ø 4 Timers, supporting multiple clock source selections, 2 of which can be clocked in standby mode and wake up with low power consumption
Ø 1 RTC, which can be used for accurate timing and low-power wake-up
Peripherals
Ø 7 channel PWM
Ø UART*2, support high-speed flow control
Ø 10 general-purpose input and output interfaces, each pin can send an interrupt by rising/falling edge or level detection
I2C, SPDIF and other audio interfaces