Allen, Tex. Quickfilter Technologies, Inc. has released version 4.0 of its QuickfilterPro4A software that is used to design filters that will be implemented in the company's QF4A512 programmable ...

A filter's coefficients may be saved in ASCII format for import into the user's DSP development software. The latest release of FilterExpress adds support for more filter types.

My friend John Edwards has generously posted his DSP algorithm libraries and filter design software at numerix-dsp.com. The libraries are designed to be highly portable; they support a wide range of ...