Process of Lip Sync in animation includes:

a. Dialogue
b. Mouth Charts
c. Things to Remember

Dialogue:
• This process starts with recording the dialogue first, using a sound recorder.
• After analyzing, it is broken down into individual phonetic syllables.
• The numbers of frames required for each syllable is counted and written down in the exposure sheet.

Mouth Charts:
Then mouth shapes are drawn according to the phonetic syllable.
For example: Closed mouth to the wide-open mouth.

Animators usually refer to their own mouth shapes and expressions, using a mirror.

Things to Remember:
• While animating a dialogue, pay attention to the sound they make and not the individual letters.
• Assign mouth shapes according to the phonetic vocals otherwise the animation will have a chattering effect.