The application discloses a kind of self-adapting
noise reduction method and
noise reduction device, including following process: the
noise source of specific environment is collected, and is converted into noise data, the
record keeping of noise data is carried out;Analysis
processing noise data, determine the A rate coefficient of noise source under environment;
Record keeping and send A rate coefficient to adaptive controller, carry out adaptive filtering
noise reduction.The application realizes the analysis to specific
environmental noise, can evaluate the use effect of protective earmuff, provides direction for protective earmuff improvement, and can grasp the relative relationship of personnel hearing and noise, strong universality, better practicality, easy to popularize and apply, with greater practical value.