Lip-sync program to synchronize animation with audio. Papagayo is a lip-syncing program designed to help you line up phonemes (mouth shapes) with the actual recorded sound of actors speaking. Papagayo makes it easy to lip sync animated characters by making the process very simple - just type in the words being spoken (or copy/paste them from the animation's script), then drag the words on top of the sound's waveform until they line up with the proper sounds.

Papagayo is designed to be used with Moho, a 2D cartoon animation program, but since it's open source, it can be modified for use with other animation applications.