HLK-V20 is the latest high-performance pure offline speech recognition module for a number of pure offline control scenarios and products.It can be widely and quickly applied to smart homes, various smart small appliances, 86 boxes, toys, lamps, industrial, , Products that require voice control, such as the Internet of Things, automobiles, security and lighting.The module uses a 32bit RSIC architecture core, and adds a DSP instruction set specifically for signal processing and speech recognition, an FPU arithmetic unit that supports floating-point operations, and an FFT accelerator.The audio signal is trained and learned through the neural network to improve the voice signal Recognition ability. The solution supports offline recognition of 150 local commands, can freely customize wake-up words, words and response broadcast words, and has a wealth of peripheral interfaces. Add a relay to the bottom plate to control high- electrical appliances.1.Processing kernel:32bit RISC core, running frequency 240MSupport DSP instruction set and FPU floating point arithmetic unitFFT accelerator: supports up to 1024 points of complex FFT/IFFT operations or 2048 points of real FFT/IFFT operations CalculateCustomized speech algorithm operator2.storage:Built-in high-speed SRAMBuilt-in 2MB FLASH3.Audio input and output:Support 1 analog Mic inputSupport channel DAC outputSupport I2S input/outputMaterial:PCBcolour:Green + blackPackage Contents:1 x Switch moduleOnly the above package content, other products are not included.Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.