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In professional audio, audio mixer
is an electronic device for combining (also called "mixing"),
routing, and changing the level, timbre and/or dynamics of audio
signals. A mixer can mix analog or digital signals, depending
on the type of mixer. The modified signals (voltages or digital
samples) are summed to produce the combined output signals.
Audio mixers are used in many applications, including recording
studios, public address systems, sound reinforcement systems,
broadcasting, television, and film post-production. An example
of a simple application would be to enable the signals that
originated from two separate microphones (each being used by
vocalists singing a duet, perhaps) to be heard through one set
of speakers simultaneously. When used for live performances,
the signal produced by the mixer will usually be sent directly
to an amplifier, unless that particular mixer is ˇ°poweredˇ± or
it is being connected to powered speakers. |
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