[0:v]split=3[c0v][c1v][c2v];[0:a]asplit=3[c0a][c1a][c2a];[c0v] trim=start=0:end=30.31,setpts=PTS-STARTPTS,fps=25,settb=AVTB [t0v]; [c0a] atrim=start=0:end=30.31,asetpts=PTS-STARTPTS [t0a]; [c1v] trim=start=30.629999999999995:end=83.56,setpts=PTS-STARTPTS,fps=25,settb=AVTB [t1v]; [c1a] atrim=start=30.629999999999995:end=83.56,asetpts=PTS-STARTPTS [t1a]; [c2v] trim=start=83.62:end=126.15,setpts=PTS-STARTPTS,fps=25,settb=AVTB [t2v]; [c2a] atrim=start=83.62:end=126.15,asetpts=PTS-STARTPTS [t2a]; [t0v][t1v]concat=n=2:v=1:a=0[vfade1]; [vfade1][t2v]concat=n=2:v=1:a=0[outv]; [t0a][t1a][t2a]concat=n=3:v=0:a=1[outa];