a b/mit-bih-ecg-compression-test-database-1.0.0/12531_02.hea 

  1
  
12531_02 2 250 5120





  
  

  2
  
12531_02.dat 212 400 12 0 -47 -14819 0 ECG





  
  

  3
  
12531_02.dat 212 400 12 0 98 2032 0 ECG