Interactive Digital Filter Design  
This is an interactive filter design package, for designing digital filters. You fill in the form and press the "Submit" button, and a filter will be designed for you.
Submitted: Dec 24, 2003
DSP Generation of Pink Noise  
This page describes how to generate pink noise by two methods: A "pinking" filter for white noise, and The Voss-McCartney algorithm of adding multiple white noise sources at lower and lower octaves. The general purpose of this page is to collect information on the generation of noise - and especially pink noise - digitally.
Submitted: Dec 24, 2003
Digital Filter Design at Rice University  
Several Matlab programs are available for the design of digital filters by several different approaches using FIR and IIR Filter Design Algorithms.
Submitted: Dec 24, 2003
Digital Filter Design Wizard (Fiwiz)  
FIWIZ is a constraint based design program for IIR as well as FIR digital filters which is geared towards features which are difficult if at all to find in other filter design programs. FIWIZ's main features are: Arbitrary magnitude constraints. Arbitrary group delay constraints. Minimum phase filters. Output of poles and zeroes. MATLAB friendly output format. Storage and retrieval of configuration files. Platform independence through JAVA technology. Wizard based approach. Versatile plotting.
Submitted: Jul 31, 2000
BruteFIR is a software convolution engine, a program for applying long FIR filters to multi-channel digital audio, either offline or in realtime. Its basic operation is specified through a configuration file, and filters, attenuation and delay can be changed in runtime through a simple command line interface. The FIR filter algorithm used is an optimised frequency domain algorithm, partly implemented in hand-coded assembler, thus throughput is extremely high. In realtime, a standard computer can typically run more than 10 channels with more than 60000 filter taps each.
Submitted: Apr 08, 2004
The FDSZ program  
The FDSZ program designs continuous-time and discrete-time filters (IIR), using several classical approximations. It also allows a generalized design procedure that can generate filters in a continuous range from the Butterworth to the Cauer approximations.
Submitted: Dec 24, 2003
Iowegian International Corporation  
Developers of ScopeDSP and ScopeFIR. ScopeDSP™ and ScopeFIR™ are affordable Windows shareware for DSP professionals, students and advanced hobbyists. ScopeDSP can generate, read, write, window, and plot sampled-data signals. Its Arbitrary-N FFT algorithm performs Time-Frequency conversion. Many statistics in Time and Frequency can be calculated. ScopeFIR designs Complex Finite-Impulse Response (FIR) filters using the Parks-McClellan algorithm or windowing. You can then mix, scale, quantize, and edit the coefficients of the FIR filter.
Submitted: Dec 24, 2003
Hydraulic filters  
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Submitted: Apr 07, 2006

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