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Lip Syncing (also known as Lip Synching)[1] is the movement of the mouth of a character to imitate dialogue or audio in speech. It can be used in projects such as animations. Lip syncing can be done by the creator of the project, but there may be Scratchers in the Requests forum willing to help or Scratchers in the Collaboration forum willing to collab.
How to make something Lip Sync in Scratch
The typical way of making something lip sync is to put multiple costumes, each one with one letter, and make them loop, with this simple script:
when gf clicked repeat (. . .:: grey) next costume wait (0.02) seconds end
This is generally known as "real lip sync" and usually takes time.
Lip syncing can also be done with multiple costumes, often with a costume for each phonetic. The user can then use a custom block to show different costumes corresponding to the letters the player wants it to lip sync. For example, a script like this could be used to ask what to lip sync.
when gf clicked forever ask [What would you like me to lip sync?] and wait lip sync (answer) in ((length of (answer))*(0.1)):: custom stack // Lips syncs the answer at 0.1 secs per letter define lip sync (words) in (time) set [letter v] to [0] repeat (length of (words)) change [letter v] by [1] switch costume to (letter (letter) of (words)) wait ((length of (words::custom))/(time)) seconds end
These are generally called "lip sync engines."
Importance
Lip sync is comparatively important to some animators. It gives talking a realistic look and adds detail to animations. If a character is feeling a certain emotion, this can be shown through different mouth movements in addition to motion and voice.
Examples
- A tutorial project on how to lip sync
- An example project with lip syncing
- Another Example
- A lip sync engine by a popular animator
- Another lip sync engine
