Cyclone II as a DSP

Hello,

All DSP examples published on the Altera website utilize DSPBuilder/MATLAB, also the DSP development kits. The FIR compiler may be interesting, too. You can evaluate it's operation, but need a subscription license to build a production design.

But you can also code signal processing in generic HDL. Basically you can realize the same algorithms that you use with the DSP processor. I don't know how you made the DSP equalizer, but a digital equivalent to the common used analog analog audio equalizers would use IIR filters to minimize resource requirements. Because of the three decades frequency range, low frequency FIR audio filters imply a very high tap count.

Regards,

Frank