Filter design packages

DSP-Wave Ltd and Signalytics own a suite of in-house packages of which some are currently being commercialised

slifer- one of our most popular tools for handcrafted digital filter design, permitting highly responsive adjustment of individual coefficient values, variation of Frequency Sampling transfer function values and even non-equispaced spectral manipulation which MATLAB's fast handling of Vandermonde matrix inversion causes to look effortless. …more

sketchafilt- using this tool, you can realise digital filters by simply drawing the desired frequency response as you would in a normal drawing package!