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Encyclopedia > Elliptical filter
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This article may be too technical for most readers to understand. Please expand it to make it accessible to non-experts, without removing the technical details.

Elliptical filter is a multiple-element, lowpass or bandpass filter which has the steepest possible rolloff slope and a small amount of ripple in the passband, with one or more notch filters added to it. Elliptical filters are used as anti-aliasing filters in digital audio devices.


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Lorch Specification Guide (743 words)
The lowpass filter response extends from D.C. to a specified cutoff frequency.
The highpass filter is specified with a 3 dB cutoff as well as an upper passband limit.
Unlike the Elliptic filter where the finite attenuation poles are determined by the mathematical function, the Pole Placed filter allows the designer to specify where these points fall.
LIST OF DSP & FILTER JOURNAL AND CONFERENCE PAPERS of C.S. Lindquist (2278 words)
Lindquist, C.S., J.S. Flaks, and J. Sutter, ``Adaptive filters for speech,'' Intl.
Taylor, A. and C.S. Lindquist, ``MFMBO filter response," IEEE Trans.
Hallberg, J. and C.S. Lindquist, ``Nomographs and filters," J. Franklin Inst., pp.
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