RatherRandomReality 2014-05-15 23:04:24

Try having layers only for sounds, nothing else. When there is no sound playing, have it play audio of silence. Have it play audio on all audio layers from frame 1 to last frame no exceptions. It works for me.

Kel-chan 2014-05-15 23:08:13

If everything is timed properly in the fla then just export the video only and combine video and audio in a third party program like sony vegas. I gave up on messing with the Audio/video sync in flash a while ago because that program is terrible with memory

Kel-chan 2014-05-16 00:32:16

Theres a program called AVS for you that can take any file format and convert it with good compression that is pretty lossless

ElectroJoe 2014-05-16 00:33:21

You could try exporting each scene as separate videos and put them together in Final Cut Pro or Adobe Premier and I think some animators like Harry Partridge have stated they've used Premier to edit the videos of their animations together there. If you don't have either, you can get a free trial of Premier if you haven't gotten one yet.

DrMackFoxx 2014-05-16 00:35:45

In Sonic Paradox, we've run into the same problems. Unless you have Flash on Creative Cloud, you're stuck with 32-bit Flash, which can only make use of 4 GB of total memory. We've had to break up and go video-only on our latest projects to get around that obnoxious 4 GB RAM limit. X_X

The only way we've gotten around Swivel and it's audio desync is by breaking up our presentations into several segments and them importing them into another program, like Adobe Premiere and then exporting the combined sequence as Windows Media video and audio. With the right settings, it actually performs very well in terms of quality and file size.

I only wish I knew what MP4 variant Swivel used. I'd buy that video compressor in a heartbeat if I knew what version it was. It definitely performs the best, even with maximum bitrates.

sweetcommando 2014-05-16 00:52:12

its a bad idea having more than 2 minutes of animation in a flash file. you might have to break it down into multiple flash files by copying and pasting frames. then export them in separate swfs and compile them in swivel.

Syrupmasterz 2014-05-16 03:04:40

From personal experience with audio in Flash, having separate layers for sound prevents cluttering of audio and potential overloading of memory.

I haven't had any audio sync problems issues in terms of large file sizes. The worst I've had recently in terms of Flash problems is when I tried to move a single keyframe that had audio going for a very long time to an early point in the timeline. This resulted in the Flash file closing on me (I'm just glad I saved recently :P). The solution I discovered after a couple of crashes was adding a keyframe ahead of the audio so there was less audio that had to be moved, THEN I moved the audio to where I wanted it. The audio in this project worked fine afterwards and I haven't had any crashes on the file since.

While it is not the same problem you are experiencing, I hope maybe the method I used to solve my audio problem can be of some use.

I wish you luck with the project!

DuDuL 2014-05-16 06:32:21

Just split the file into few parts - If you put 4 swf's in order inside Swivel - it will render into one video file

Flaxington 2014-05-16 10:59:08

Go to Publish Settings>Flash>Audio Stream>Set and change it to ADPCM. Works for me.

I've added a pic for you to see:
imgur /fSPJ5lM

DuDuL 2014-05-16 11:15:54

Regarding audio - both ways will work. But i upload 1 audio track just to be sure ;3

YoutubeIsawesome 2014-05-16 22:37:35

Are you swayed

Exedor 2014-05-17 12:15:29

I've been told to change my framerate. I animate at 24 fps and they told me to change it to 23.976 (or 23.98) fps. Sure enough, even though it still shows as 24fps (23.98 in some areas), I still have synced audio all the way along, and the animations (storyboards) have been about 4-6 minutes in length.

I made the storyboard for this one: http://www.newgrounds.com/portal/view/630887. It's just over 5 minutes long but the audio stays synced all the way along using the same technique.

I haven't tried the ADPCM tip a few comments down. I'll have to try that one as well.

ShadowWhoWalks 2014-05-17 23:15:35

go to publish settings and and find the options about audio stream and audio event, raise the compression from 24 kbps to 64 kbps or higher, this solved my audio sync problem.