Simple high pass filters>

If the data is sampled at 48kHz or 96kHz, what would be an easy way to
create an efficient high-pass filter with fixed cutoff frequency at
2Hz? The characteristics of filter does not matter. The goal is to
remove the DC or near DC term.

I was thinking that I can first create a moving averaging mean-value
estimator which has an averaging time at 0.5 seconds, then substract
the mean estimate from each data point.

Any better idea?

James
www.go-ci.com