output = new Channel (Short.TYPE, 1);
output = new Channel (Float.TYPE, 1);
    public void init(int sampleFreq, final int dec, float c, final int t, float g) {        input = new Channel (Float.TYPE, dec, t);        output = new Channel (Short.TYPE, 1);		inSampFreq = sampleFreq;	numTaps = t;	cutoff = c;	gain = g;	decimation = dec;	taps = new float[numTaps];	buildFilter_real();    }