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EDF and EDF+ are the standard file formats for EEG and PSG recordings but are also used for EMG, Evoked Potentials, and ECG.

EDF is a simple and flexible standard format for exchange and storage of (bio)physical signals. The signals can have any (and different) physical dimensions and sampling frequencies. Programming an EDF import/export unit typically takes a week. EDF was published in 1992 in Electroencephalography and Clinical Neurophysiology, 82: 391-393.

EDF+ is an improved specification of EDF. It is compatible to EDF except that an EDF+ file may contain interrupted recordings. EDF+ also accommodates annotations and analysis results. Software development is limited mainly to implementing the annotations and typically takes another week. EDF+ was published in 2003 in Clinical Neurophysiology 114(9):1755-1761.

Detailed specifications, free software and files, and a list of compatible equipment and software are on http://www.edfplus.info

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  • 225
  • Software
  • Oct 22, 1998
  • English

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