System for Generating FIR-Filter Coefficients Based on Measurements
After twenty years of research and development WaveCapture are proud to present the first expert system for generating FIR-filter coefficients based on measurements; FIR-Capture.
Originating from Lab.gruppen’s DSP24 FIR-filter based loudspeaker processor, pioneered by Dan Bävholm and Klas Dalbjörn, and together with Johny Grenander’s groundbreaking work on Windows based measurement system.
FIR-Capture is one of the first measurement systems to offer FIR coefficient generation for independent magnitude-, phase- and group-delay -linearization using linear or mixed phase targets. Linear phase crossovers and brickwall filters are used in a combination with IIR parametric filters in the simulation. Text and comma separated .CSV coefficient files can be created for use in a number of DSP processors or amplifiers. Among them are the XTA DP448, Crown I-Tech HD, Powersoft KDSP-series and soon Lab.gruppen’s PLMs.
