$ff = gc D:\soft\1t.txt
$sf = gc D:\soft\2t.txt
for ($i=0;$i -lt $ff.length;$i++){
$l = "D:\soft\mencoder.exe"
$m = "mf://D:\soft\dancing_banana.jpg -mf fps=1/$($sf[$i]) -ovc lavc -lavcopts vcodec=mpeg4 -oac mp3lame -lameopts abr:br=160 -srate 44100 -ofps 25 -audiofile $($ff[$i]) -o $($ff[$i]).avi"
[diagnostics.process]::Start($l,$m)
}