Abstract: In view of the research and application development of speech recognition technology in the field of artificial intelligence, dual microphone array technology is adopted to suppress environmental noise and carry out human voice through unique low power wake-up and recognition dual engine technology, speech recognition algorithm based on mixed depth learning model, fusion adaptive far field noise reduction technique and so on. Gain, acoustic source localization and wave velocity formation are used to achieve high accuracy far-field speech recognition and strong reliability operation.

Key words: Speech recognition, Dual engine mode, Adaptive noise reduction, Air conditioning false identification suppression, Air conditioning applications