Lowpass Filter

Lowpass Filter
A filter that attenuates frequencies above a specified frequency and allows those below that point to pass.
A filter that attenuates frequencies above a specified frequency and allows those below that value to pass.

Audio and video glossary. 2014.

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  • Lowpass Filter —   [engl.], Tiefpassfilter …   Universal-Lexikon

  • Lowpass — Als Tiefpass bezeichnet man in der Elektronik Filter, die Signalanteile mit Frequenzen unterhalb ihrer Grenzfrequenz annähernd ungeschwächt passieren lassen, Anteile mit höheren Frequenzen dagegen abschwächen. Entsprechende Filterfunktionen… …   Deutsch Wikipedia

  • lowpass — 1. adjective An audio filter that discards higher frequencies while preserving lower ones. 2. noun A filter of this kind …   Wiktionary

  • Prototype filter — Prototype filters are electronic filter designs that are used as a template to produce a modified filter design for a particular application. They are an example of a nondimensionalised design from which the desired filter can be scaled or… …   Wikipedia

  • Low-pass filter — A low pass filter is a filter that passes low frequency signals but attenuates (reduces the amplitude of) signals with frequencies higher than the cutoff frequency. The actual amount of attenuation for each frequency varies from filter to filter …   Wikipedia

  • Nonlinear filter — A nonlinear filter is a signal processing device whose output is not a linear function of its input. Terminology concerning the filtering problem may refer to the time domain (state space) showing of the signal or to the frequency domain… …   Wikipedia

  • Anti-aliasing filter — An anti aliasing filter is a filter used before a signal sampler, to restrict the bandwidth of a signal to approximately satisfy the sampling theorem. Since the theorem states that unambiguous interpretation of the signal from its samples is… …   Wikipedia

  • Sallen–Key filter — A Sallen–Key filter is a type of active filter, particularly valued for its simplicity. The circuit produces a 2 pole (12 dB/octave) lowpass or highpass response using two resistors, two capacitors and (usually) a unity gain buffer amplifier.… …   Wikipedia

  • State variable filter — A state variable filter is a type of active filter. It consists of one or more integrators, connected in some feedback configuration. Any LTI system can be described as a state space model, with n state variables for an nth order system. A state… …   Wikipedia

  • Polyphase quadrature filter — A polyphase quadrature filter, or PQF, is a filter bank which splits an input signal into a given number N (mostly a power of 2) of equidistant sub bands. These sub bands are subsampled by a factor of N, so they are critically sampled.This… …   Wikipedia

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