Improving performance of for loop when decimating a buffer

Question

I am collecting 16384 double values from a hardware device using a signal processing library. The 16384 values I receive are the output of a low pass filter. I want to down sa

Answer 1

This is solved. The libraries I use have a function which will assign all values from a double[] to it's internal real buffer

 realbuffer.Equals(finalBuffer);

This takes 50us... Thanks for all the help.