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Mixers, in the context of sound and audio engineering, are used to combine multiple audio signals into one. This is essential in live performances, music production, and broadcasting to name a few. Mixers have various controls like level knobs, equalizers, and pan knobs to adjust the final sound output. In food preparation, a mixer is an appliance used to mix ingredients together, either by hand or with a mechanized tool. The specific purpose of a mixer depends on its type and the particular field in which it is used.