The present invention discloses a denoising method, device and
system. The method is applied to an earphone, the earphone is equipped with a
microphone and an earphone
loudspeaker, and the
microphone is used for acquiring the sound information of the users. The method comprises the steps of using the
microphone to acquire the current
environmental noise information when the situation that there is currently existed the to-be-played audio information or the audio information is being played currently, is determined; according to the
environmental noise information obtaining the anti-
noise information; superposing the anti-
noise information and the audio information to obtain the superposed audio information; playing the superposed audio information via the earphone
loudspeaker. According to the technical scheme, when the to-be-played audio information is detected or the audio information is being played, the microphone does not acquire the sound of the users at the moment, so that the microphone can acquire the
environmental noise, then the anti-
noise information is obtained according to the environmental noise, and further the noise is reduced according to the anti-noise information, and accordingly, a scheme of arranging the microphone on the earphone to denoise is realized, the structure of the earphone is simplified, and the manufacturing cost of the earphone is reduced.