DAQ and filter

[desentis]

I have 18 channels of an amplified EMG signal, and I want to filter it before saving the signal into a file. The sampling frecuency is 2000 Hz. I´ve tried using a Matlab script to filter the signal but I cant. Also, I´ve tried using a filter from labview but the signal is a 2D array (the first column is the signal and the second is the channel) and the filter only accepts 1D arrays. What can I do? My lavbiew version is 6.1

[tbob]

Wire the 2D array into the Index Array function. Leave the row index unwired. Wire 0 into the column index. The output will be a 1D array of just the first column. Wire this into the filter.