Testing with sine waves and pre-recorded EEG data
To test the FieldTrip buffer interface between MATLAB and/or other software, you can use a simple sine wave generator.
MATLAB test function
The ft_realtime_signalproxy is a small MATLAB function that writes data to the buffer. It creates band-pass filtered random noise and streams it continuously to the buffer.
Stand-alone test application
The sine2ft is a test application with a graphical user interface that allows you to set the number of channels, sampling rate, and the frequency and amplitude of the signals that are written to the buffer. It combines well with the viewer application.