Speech Enhancement Fusing a General Microphone and a Bone Conduction Microphone

This paper describes a method to reduce noise contained in signal obtained from a general microphone by using sensor fusion with a bone conduction microphone and a general microphone. A bone conduction microphone is a microphone that directly detects the vibrations in the throat when a person speaks. Hence, bone conduction microphones are less susceptible to external noise than general microphones. However, as bone conduction microphones have different acoustic characteristics than general microphones, the sound quality will deteriorate. Based on the above prospects, we are researching the sensor fusion technology with a bone conduction microphone and a general microphone. In this paper, we formulate the framework of the proposal approach and conduct some experiments to check the effectiveness of the proposal approach.