Description
Dual-Mic Offline Voice Sound Module Broadcast Interruption Echo Cancellation Module Talk Interactive Voice Recognition
Product Description
V25 dual-mic offline voice module is a voice interaction solution based on home scenarios, which can realize voice control, which is more direct, natural and convenient than traditional manual control (machine control, remote control, mobile phone), and helps to improve product user experience. The voice module has rich system peripheral resources, including UART, I2C, SPI, PWM, ADC and so on. The module adopts acoustic front-end solutions such as voice enhancement, sound source localization, and echo cancellation, as well as functions such as voice wake-up and offline recognition. The front-end adopts the latest generation of microphone array algorithm, which integrates traditional signal processing and neural network processing capabilities to significantly improve the front-end acoustic processing effect. It can be widely used in smart home appliances, 86 boxes, toys, lamps, industrial, medical, automotive, security and lighting products that require voice control.
Meet the needs of home appliance voice interaction
1. Dual-mic front-end processing algorithm to meet most environmental noise reduction needs; 2, echo cancellation, support broadcast interruption; 3. A new generation of neural network wake-up and recognition technology; 4. Support built-in audio playback. 5. The low false wake-up rate is better than the industry level. 6. High recognition rate for Mandarin with dialect accents. 7. Support multiple languages. 8. Offline technical solutions. 9. An external power amplifier is required.
Product Features
MVA core algorithm architecture (NN+DSP), Andescore at 200MHz internal vector interrupt controller (IVIC), embedded debug module (EDM), support serial debug port
Specification
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item
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value
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Working voltage
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5V(±0.25V)
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Power consumption
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standby current 170mA, maximum current 480mA
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Operating temperature
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-20°C ~ +85°C
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Storage temperature
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-40°C ~ +85°C
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Working humidity
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10% ~ 95% (non-condensing)
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Basic Information
Appearance size: 30*20*2.2mm Appearance package: SMD56 Peripheral interface: UART/GPIO/PWM//I2C/ADC Memory/Flash: 8MB PSRAM/1 MB SRAM/ 8MB NOR Flash Microphone array: 2 analog microphones Signal array: 2-channel reference signal (adaptive voice interrupt function) Amplifier: Class D 80/0.75W output Wake word: 3 groups (can be customized according to demand) Command words: 200 groups (can be customized according to demand)
Installation Instructions
Setting
1. Button description K1, K2, K3, K4 are connected to ordinary GPIO pins for input use; The Reset key is the module reset and restart key; The Updata key is used when downloading programs. 2. LED indicator The POWER light is on, indicating that it has been powered on normally; LED1-LED4 are connected to the common GPIO pins of the module, and the LEDs are externally pulled up.
Details Images