The Complete Guide to Optimizing Lip Synchronization
Achieving precise lip synchronization requires attention to the following key points:
- Audio Preprocessing:Using WAV format audio at 16kHz sample rate, it is recommended to use a tool such as Audacity to reduce noise and normalize the volume (-3dB to -6dB)
- Parameter Adjustment:commander-in-chief (military)
--audio_cfg_scaleIncreased to the range of 5-7, this parameter directly controls the weight of the audio effect on mouth shape - Mouthpiece reference:Select the input image with a front-face view, avoiding side faces or occlusions; clear portraits with a resolution of 512 x 512 or higher are recommended
- Pro Tip:Insertion of 0.5 seconds of ambient noise in the audio mute section avoids mouth stiffness, and complex articulations can be synthesized after segmentation.
According to official tests, the most natural look and feel is achieved when the cosimilarity between the audio MFCC features and the video mouth shape is > 0.85
This answer comes from the articleFantasyTalking: an open-source tool for generating realistic speaking portraitsThe
May not be reproduced without permission:AI productivity tools " How to improve the lip synchronization accuracy of FantasyTalking generation?
