1. A method for implementing a digital filter, comprising: computing on a digital computer a mathematical model of a digital filter; the mathematical model having a predetermined first set of parameters; converting the first set of parameters to a second set of parameters, where the second set of parameters includes control parameters for a pre-selected digital-filter integrated circuit (IC); verifying that the execution of the second set of parameters by the digital-filter IC substantially reproduces the behavior of the mathematical model; and, writing the verified second set of parameters to permanent storage on the digital-filter IC.