Audio not in sync with animation when exported

Question

So, I just finished an animation that I have managed to perfectly sync with the audio inside the program. Though, the first time I exported it and converted it to an MP4 in Adobe Media Encoder, the audio was nonexistant. I ended up fixing this problem by moving the audio to frame 2 rather than frame 1. However, when I exported it again, the audio was there, but it was extremely off-sync and the video itself was ahead by a lot. I'm not quite sure how to fix this, and I don't know what the cause is. When I preview it inside the program, it's perfectly fine. It's only a problem when I export it and view it in my File Explorer. Any ideas on how I could fix this?

kglad · Accepted Answer

i assume you attached your audio to a frame.  if so, click the keyframe where the audio starts and in the property panel set the sync property to stream.

_keyframer · Answer

Is this an HTML5 Canvas document? What's your intended output format?

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