Animation audio sync

This is what I could find out by experimentation... there is no documentation I could find for this, but:

Motion converts all audio to 44.1 with a couple of exceptions:

1) Share > Other Destinations > Export Audio with the setting of AC3 (Dolby Digital)

2) Share > Other Destinations > Apple Devices > Apple TV

Show Details > Encode for More compatibility

And that is pretty much it... for working locally.

If you plan to use your project in FCPX, then export a copy of the audio and import it into FCPX (you'll have to do that one way or the other anyway because FCPX does not use Motion audio in generators/effects without importing the audio from the Media folder anyway).

I did not test DVD/Blu-ray (they usually don't count anymore) but I did try YouTube and that maintains the 48Khz sample rate.

You can try out the others, just select the destination and then check the Summary tab for the details of the exported media.

fox_m wrote:

This is what I could find out by experimentation... there is no documentation I could find for this, but:

Motion converts all audio to 44.1 with a couple of exceptions: …

tried a few files & shares: confirming that!!!

Now THAT is … odd weird a scandal ?

Read some old specs on wiki: antique DV used a 48kHz sample-rate, older Betacam did too … '44.1' was invented in the days of PCM adapters to record 'digital' on u-matic cassettes …

so, how come the 'audioCD rate' of 44.1 made it into 'Molokini'??? And why?

feedback time!

Feedback - Motion - Apple

I don't know if this will work, but it's an idea. Try setting the Audio Midi setup to 48k before exporting.

1. Open "Audio Midi Setup" in the Utilities folder.
2. Select Built-In Output
3. Change the Format>Channels (I'm looking at High Sierra when doing this) to 24-bit Integer (48.0 kHz)
4. Try your export

This is a bit of a guess, but I recall having done something similar several years ago. Worth a try, and you can always change it back if it doesn't work.

The difference in audio sample rate may well be what is causing the loss of sync.

48KHz is the standard for video and your original audio is already at that rate so change the export settings to match. There should never be a ProRes video with 44.1KHz audio.

Well, back in the day of standard definition compact discs, audio was 44.1kHz for those. But yeah, this is totally wrong.

I made a custo preset in Compressor that has correct audio specs, and I just use that inside Motion, here in 2018... (sigh)

Feedback form filled out, again.