Patent ID: 7215787

Claim:
A method for designing and creating an audio precompensation filter based on a model of the response of an associated sound generating system, wherein said audio precompensation filter, for design calculations, is additively decomposed into a fixed, non-zero filter component and an adjustable compensator component, and said method comprises the steps of: determining said model of the response of said associated sound generating system based on measurements of sound, said sound being produced by said sound generating system; determining said adjustable compensator component of said audio precompensation filter by optimizing a criterion function including a given weighting of both of: i) approximating the audio precompensation filter to said fixed, non-zero filter component, and ii) approximating a precompensated model response to a reference system response; determining filter parameters of said audio precompensation filter based on adding said fixed filter component and said determined compensator component; and creating said audio precompensation filter implementing said determined filter parameters, said audio precompensation filter being embodied together with said associated sound generating system so as to enable generation of sound influenced by said audio precompensation filter.