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Hi Kim, I think that would be a factor of 4. You might also try downsampling via the maxfilter command line via -ds 4 -nosss. Jon On Thu, Jan 16, 2014 at 10:48 AM, Kim Paulson <[log in to unmask]> wrote: > Does anyone know what to use for the downsampling_factor? > > > > I am trying to downsample a file from 1000Hz to 256Hz using > fiff_downsample and it wants a downsampling_factor. Do I use 256 or 3.9 > (1000/256) or .256 (256/1000) ? > Thanks > Kim > > -- > Kim Paulson > Research Technician > [log in to unmask] > Office: 505-433-7232 > Lewine Lab > Mind Research Network > > -- Jon M. Houck, Ph.D. Research Assistant Professor Center on Alcoholism, Substance Abuse, and Addictions Department of Psychology University of New Mexico Albuquerque, NM 87131 http://casaa.unm.edu/jhouck.html