EDF (SignalML 1.0)

<?xml version="1.0"?>
<meta_format>
<header>
 <format id='EDF'/>
 <text_info>EDF data format</text_info>
 <url>http://www.hsr.nl/edf</url>
</header>

<data_format frame_type='edf_frame' 
             offset='{header_size}' 
             record_size='{duration_of_data_record}' 
             sample_size='{nr_of_samples}' 
             sample_type='int16'
             /> 
<parameters>
  <property id='version' type='ascii' width='8' offset='0'/>

  <property id='patient_ident' type='ascii' width='80' offset='8'/>
  <property id='record_ident' type='ascii' width='80' offset='88'/>
  <property id='start_date' type='ascii' width='8' offset='168'/>
  <property id='start_time' type='ascii' width='8' offset='176'/>
  <property id='header_size' type='ascii' width='8' offset='184' evaltype='int32'/>
  <property id='reserved' type='ascii' width='44' offset='192'/>
  <property id='number_of_data_records' type='ascii' width='8' offset='236' evaltype='int32'/>
  <property id='duration_of_data_record' type='ascii' width='8' offset='244' evaltype='float'/>
  <property id='transducer_type' type='ascii' width='80' index='1..{number_of_channels}' 
           offset='256+16*{number_of_channels}+80*({index}-1)'/>

  <property id='physical dimension' type='ascii' width='8' index='1..{number_of_channels}'
           offset='256+96*{number_of_channels}+8*({index}-1)'/>
  <property id='physical_minimum' type='ascii' width='8' index='1..{number_of_channels}'
           offset='256+104*{number_of_channels}+8*({index}-1)'/>
  <property id='physical_maximum' type='ascii' width='8' index='1..{number_of_channels}' 
           offset='256+112*{number_of_channels}+8*({index}-1)'/>
  <property id='digital_minimum' type='ascii' width='8' index='1..{number_of_channels}' 
           offset='256+120*{number_of_channels}+8*({index}-1)'/>
  <property id='digital_maximum' type='ascii' width='8' index='1..{number_of_channels}' 
           offset='256+128*{number_of_channels}+8*({index}-1)'/>
  <property id='prefiltering' type='ascii' width='80' index='1..{number_of_channels}' 
           offset='256+136*{number_of_channels}+80*({index}-1)'/>
  <property id='nr_of_samples' type='ascii' width='8' index='1..{number_of_channels}' 
           offset='256+216*{number_of_channels}+8*({index}-1)'/>
  <property id='reserved2' type='ascii' width='32' index='1..{number_of_channels}' 
           offset='256+224*{number_of_channels}+32*({index}-1)'/>
  
  <sampling_frequency index='1..{number_of_channels}' 
           evaltype='float' eval='{nr_of_samples}[{index}-1]/{duration_of_data_record}'
           units='Hz'/>

  <number_of_channels type='ascii' width='4' offset='252' evaltype='int32'/>
  <calibration_gain evaltype='float' index='1..{number_of_channels}'
           eval='1.0F/({physical_maximum}[{index}]-{physical_minimum}[{index}])' 
           units='microVolts'/>
  <calibration_offset evaltype='float' index='1..{number_of_channels}'
           eval='{physical_minimum}[{index}]-{digital_minimum}[{index}]*{calibration_gain}[{index}]'/>
  <channel_names type='ascii' width='16' index='1..{number_of_channels}' 
           offset='256+16*{index}'/>
</parameters> 
</meta_format>