| 摘要 |
<p>Disclosed are a method, an apparatus and a system for noise reduction, wherein working state information of a noise source is acquired, the working state information representing a working state of the noise source (101), then according to a pre-set relationship between the working state information and sound wave information, sound wave information corresponding to the working state information is determined (102), and the sound wave information is used for positive noise reduction without needing steps of acquisition, conversion and calculation of the noise generated by the noise source, so that the time to be taken for the positive noise reduction can be shortened.</p> |
