I'm sampling data with a Texas DSP, applying a filter and the sending these data to a DAC at 44050Hz. I think I have to put a "reconstruction filter " just after the DAC. What kind of filter is usually used ? any reference ? any schematic sample ?
If you like the sound of aliasing, high rf components, slew rate distortion, distruction of you tweeter and your power amp then you maybe like the sound of a filterless design.
As reconstruction filter you need an inverse sin(x)/x and a lowpass filter. A good compromise between impuls handling and out of band filtering is a bessel filter. But if you have a DSP oversampling (or interpolation filter) may be the better solution.