Through the sound field separation process, we decouple the active noise control system from the room environment. The decouple process translates the challenging problem of active noise control in a room into a simple free field noise field control problem. The proposed ANC system does not need the knowledge of the full secondary path to design the secondary source output, thus there is no need for online secondary path estimation. By cancelling the outgoing field only, the ANC system’s influence on the desired sound fields in the room is reduced.
Fei Ma received B.E. and M.E from Harbin Institute of technology in 2013 and 2015 respectively.
His masters thesis is on active noise control in tubes. Currently, he is a PhD student with Audio & Acoustic Signal Processing Group, Research School of Engineering at ANU. His thesis topic
is on the problem of active noise control inside rooms.