I hope someone could help me with audio file issue I have at the moment.
I make animation in Animate CC (mostly lip-sync) 25fps.
When I import my audio file (MP3 44kHz) to Animate CC - I can see the audio file lenght is 2537 frames.
When I import the same audio file to After Effects (25fps) - lenght is 2546 frames.
Also - when I import SWF to AE - at one point sync just fails. As I see SWF is correct lenght at 25fps but something with audio file.
Can't understand what's going on and I can't find what cause it.
Maybe some of you had same issue before?
What I'm missing?
Decompress the audio source to 16-bit 44100Hz PCM WAV and try again.
If you export SWF for further compositing, set the audio to RAW, maximum quality.
See if this gives you better results.
I believe that there has been an IO problem with mapping audio to frames in Flash for many versions.
In CS6, which I use the most, when exporting a PNG sequence and separate WAV for rendering the video in Premiere there is always a few frames mismatch which gets larger the longer the animation is.
What I do in Premiere is to change the Speed/Duration of the audio to match the duration of the PNG sequence exactly. This is the fastest way I have discovered to solve the issue. The change from this is not noticeable and maintains perfect sync.
Maybe there is a Speed/Duration setting in AE also and you can do just that. I have not touched AE for many years so I don't remember...