Note that this reference documentation is identical to the help that is displayed in MATLAB when you type “help ft_realtime_signalproxy”.
FT_REALTIME_SIGNALPROXY creates some random data and writes it to a FieldTrip buffer. The FieldTrip buffer is a network transparent server that allows the acquisition client to stream data to it. An analysis client can connect to read the data upon request. Multiple clients can connect simultaneously, each analyzing a specific aspect of the data concurrently. Use as ft_realtime_signalproxy(cfg) with the following configuration options cfg.blocksize = number, in seconds (default = 0.5) cfg.channel = cell-array with channel names cfg.fsample = sampling frequency cfg.speed = relative speed at which data is written (default = 1) cfg.precision = numeric representation, can be double, single, int32, int16 (default = 'double') The target to write the data to is configured as cfg.target.datafile = string, target destination for the data (default = 'buffer://localhost:1972') cfg.target.dataformat = string, default is determined automatic You can apply some filtering to the random number data to make it appear slightly more realistic with cfg.lpfilter = 'no' or 'yes' lowpass filter (default = 'no') cfg.hpfilter = 'no' or 'yes' highpass filter (default = 'no') cfg.bpfilter = 'no' or 'yes' bandpass filter (default = 'no') cfg.lpfreq = lowpass frequency in Hz cfg.hpfreq = highpass frequency in Hz cfg.bpfreq = bandpass frequency range, specified as [low high] in Hz To stop this realtime function, you have to press Ctrl-C See also FT_REALTIME_SIGNALPROXY, FT_REALTIME_SIGNALVIEWER