public float[] map(final float[] data) {
final float[] out = new float[data.length * upFactor / downFactor];
for (int i = 0; i < data.length; i++) {
final float sample = data[i];
for (int j = 0; j < upFactor; j++) {
final Filters.FIRFilter filter = filters[j];
filter.addToDelayLine(sample);
final int upsampledIndex = i * upFactor + j;
if (upsampledIndex % downFactor == 0) {
out[upsampledIndex / downFactor] = (float) filter.filter();
}
}
}
return out;
}
public float[] map(final float[] data) {
final int outLength = data.length * factor;
if (out == null || out.length != outLength) {
out = new float[outLength];
} else {
Arrays.fill(out, 0);
}
for (int i = 0; i < data.length; i++) {
final float sample = data[i];
for (int j = 0; j < factor; j++) {
final Filters.FIRFilter filter = filters[j];
filter.addToDelayLine(sample);
out[i * factor + j] = (float) filter.filter();
}
}
return out;
}
