signal ch_wave type 0 comment created using xlabel Mon Feb 22 07:45:44 1999 separator ; nfields 1 # 0.173428 -1 x; file sil1 ; 0.245849 -1 x; file w1 ; 0.560307 -1 x; file w2 ; 1.172071 -1 x; file w3 ; 1.680922 -1 x; file w4 ; 2.010820 -1 x; file sil2 ;