FLEXIBLE FILTERS

摘要

T+A is no stranger to custom digital filters as it was one of the very first to offer such a facility in the days of plain vanilla CD players. The DAC 8 is a logical extension of this, albeit one realised with a 56-bit DSP feeding a quad-differential array of 32-bit DACsl These custom filters bypass the oversampling within the DAC chips and come in two flavours - FIR 1 and 2 being traditional' linear-phase Finite Impulse Response types while BEZ 1 and 2 are minimum-phase filters based on Bezier polynomials.