The dual microphone noise reduction technology is based on the latest neural network processing speech algorithm, which effectively solves the problems of speech noise pollution and indoor reverberation interference, improving the intelligibility and recognition rate of speech signals. After receiving two audio inputs from the dual microphone, the signal source and noise source are identified through speech enhancement algorithms, effectively suppressing noise and removing certain reverberation and echo interference, further improving the effectiveness and quality of sound collection, providing effective guarantees for subsequent activation and command word recognition.