Research of noise in audio system of fully mechanized working face

Abstract

Major sources of noise in audio system of fully mechanized working face were researched in the practice. Advices of design of filter were given for different application requirements, and band-pass active filter was designed. Requirements of sound field distribution to equipment installation, selection of balanced and unbalanced signals and corresponding interference measures were analyzed.

Keywords

• coal mine communication
• fully mechanized working face
• audio communication
• noise
• filter