The invention discloses a VR large-space active
noise reduction and directional
speech enhancement system, particularly relates to the technical field of
speech enhancement, and aims to obtain a user attention direction by fusing multi-mode sensor data in user wearing equipment, guide a sound source positioning module to quickly lock a
speech interaction main direction in a multi-sound-source interference environment, and improve the
speech enhancement efficiency. Non-target speakers are further filtered through voiceprint
feature recognition, it is ensured that enhanced voices have individual consistency, through deep anti-
reverberation modeling, reflection residual sounds generated by multi-path propagation are effectively stripped, semantic fuzziness caused by pseudo sound source
aliasing is avoided, a voice enhancement and active
noise reduction module corrects the
frequency spectrum phase while enhancing the amplitude spectrum, and the
noise reduction effect is improved. The definition and naturalness of output voice are remarkably improved, the enhanced focusing performance of the
system is monitored in real time by introducing a target locking
drift coefficient and a beam pointing deviation coefficient, and adaptive reconstruction is triggered based on a closed-loop correction index.