what is filter?

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Sometimes, Some kind of operations requires certain range of frequencies to perform its operation more efficiently.Thus a circuit is designed to perform such operation is called filter circuit.It is mostly needed in stereo systems,where certain range of audio frequency is required to be amplified.Also equalizers are used that allow the amplitude of several frequency ranges to be adjusted to
what is filter? what is filter? Reviewed by haru on December 19, 2012 Rating: 5

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