Some idyosincrasies of the program

edfAsc was designed trying to make its use as simple as possible. This implies making some choices and limiting the options of the user.

• When we export ASCII files the time is referred to the beginning of the EDF file (relative time)
• When we export float values little-endian 4 byte Intel format is used
• To create an EDF file the ASCII file is read twice. In the first reading the range of the signals and some other properties are detected. In the second one the EDF file is created
• The digital maximum/minimum of the EDF file is set to 32000/-32000 in such a way that digital 0 corresponds to physical 0. Different signals of the same file are scaled with different physical maximum/minimum
• Records are padded with 0 values to fill the last data record
• If the length of the data record overpass 61440 bytes (it depends on the sampling rate, the number of signals and the length of the data record) a warning is emitted but the file is created
• The header is filled with arbitrary values. The resulting file should be edited e.g., with edfEdit