When it comes to reducing unwanted sounds, there are a variety of terms that can be used interchangeably with noise reduction. Some commonly used synonyms include noise canceling, soundproofing, acoustic insulation, and sonic dampening. All of these phrases refer to the ability to minimize or eliminate irritating or distracting sounds, whether in a room or in a piece of audio equipment. Whether you're trying to create a peaceful living space, reduce background noise on a conference call, or improve the sound quality of a recording, using a phrase like noise reduction will make it clear what your goal is.