a b/mit-bih-ecg-compression-test-database-1.0.0/11950_04.hea 

  1
  
11950_04 2 250 5120





  
  

  2
  
11950_04.dat 212 400 12 0 4 -24102 0 ECG





  
  

  3
  
11950_04.dat 212 400 12 0 136 23579 0 ECG