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Kling Lip Sync Audio to Video Node synchronizes mouth movements in a video file to match the audio content of an audio file. This node analyzes the vocal patterns in the audio and adjusts the facial movements in the video to create realistic lip-syncing. The process requires both a video containing a distinct face and an audio file with clearly distinguishable vocals.

Inputs

ParameterDescriptionData TypeRequiredRange
videoThe video file containing a face to be lip-syncedVIDEOYes-
audioThe audio file containing vocals to sync with the videoAUDIOYes-
voice_languageThe language of the voice in the audio file (default: “en”)COMBOYes"en"
"zh"
"es"
"fr"
"de"
"it"
"pt"
"pl"
"tr"
"ru"
"nl"
"cs"
"ar"
"ja"
"hu"
"ko"
Important Constraints:
  • The audio file should not be larger than 5MB
  • The video file should not be larger than 100MB
  • Video dimensions should be between 720px and 1920px in height/width
  • Video duration should be between 2 seconds and 10 seconds
  • The audio must contain clearly distinguishable vocals
  • The video must contain a distinct face

Outputs

Output NameDescriptionData Type
outputThe processed video with lip-synced mouth movementsVIDEO
video_idThe unique identifier for the processed videoSTRING
durationThe duration of the processed videoSTRING
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