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I am looking for a way to link the video texture start frame with the audio start frame in the video sequencer.

My intention is as follows

  • Import multiple movies as Image plane in Blender

  • Then import the respective audio track in blender video sequencer. Align the audio track by matching the start frame in the video texture and video sequencer. This is a manual process. But I am ok with it. I am not sure how to link the start frame of video with the start frame of audio. - This is what I need.

  • Then animate camera pan and zoom and update the video start texture according to the animation manually.

  • Then I expect the audio start frame to be adjusted automatically - This is what I want to happen

I searched google and found that drivers in blender can be used for these purposes. But soon realized that there are no drivers for both the options. I also tried to create a custom property. But had no success.

Please suggest

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1 Answer 1

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Here is a workaround solution

A custom property, named "audio" is added to the movie texture, with a value of the soundstrip name. Every time the script is run it updates the audio strip, pointed to by the audio key, to have the same frame_start as the tex.

import bpy

context = bpy.context
scene = context.scene
sequences = scene.sequence_editor.sequences_all
# all the textures with audio custom prop
textures = [t for t in bpy.data.textures if "audio" in t.keys()]

for t in textures:
    audio_strip = sequences.get(t["audio"])
    if audio_strip:
        audio_strip.frame_start = t.image_user.frame_start
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  • $\begingroup$ That works for me. Brilliant $\endgroup$ Commented Mar 13, 2016 at 13:58
  • $\begingroup$ I am now trying to use the texture path to load the audio from the same video and do the same. $\endgroup$ Commented Mar 13, 2016 at 14:02
  • $\begingroup$ Thanks a lot for this. Its a good start for me to learn some Python coding in Blender. $\endgroup$ Commented Mar 13, 2016 at 14:02

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