The term splice means to cut a sequence, insert a segment and join the cut ends to the segment. It can also mean a simple joining of ends to a segment.
In character studio, you can splice a footstep sequence. You do this by copying a footstep sequence, then moving it to the middle or end of another footstep sequence and placing it there. The ends of the segments are joined automatically to make a smooth footstep sequence.
You can use splicing to extend your footstep animation or build a cyclic sequence.