Slow out of Sync Audio in all Sequences

[Matt Campbell]

I’ve just had a similar issue myself but with an HD sequence. Audio plays fine out of right channel but left channel is in like slow-mo or something. Also, about every other time I play the sequence it starts out echoing and delayed. I created an SD sequence and everything worked fine. I can’t figure this one out either.

OS 10.5.5, Mac Pro 2 x 3 ghz quad-core intel xenon, 9 gb ram, with BM Intensity Pro card

[Ethan Benninger]

I too am having this Slow-Mo audio problem, with two separate projects–both are SD. One was finished over a month ago and always played fine. Then today with a newer project, opened for the first time on this machine. I deleted all render files, reconnected the media, rendered an audio mixdown and even exported out an .mov AUDIO only. The audio plays back out of sync and slow in the timeline, and in the .mov file. The other weird issue is that it only seems to effect random clips in the timeline–some are slow and out of sync, and then suddenly the audio switches back to normal, in sync. The media is on an internal SATA drive with plenty of room. Help! This appears to be a bug in the most current version of Final Cut (6.0.6), has anyone solved this issue?

Dual 2.0 GHz PowerPC G5, 4 GB DDR SDRAM, ATI Radeon X800 XT

[Chad Johnson]

I just want to add that I too am having audio issues. My audio now plays slow in Final Cut Pro. Whether it’s an old project that never had an issue, or it’s a brand new project that I drop video (with audio) onto. I can make it play normal by setting the audio sample rate in the Sequence Settings from the normal 48k to 44.1k. This gets me through the moment but it is not a real solution.

It’s not an issue with my audio interface because I turned it off and switched to my internal speaker, and the same thing happens. I’m pretty sure something tweaked my FCP.

Did those of you having the problem ever resolve it? Did you maybe re-install final cut pro? Any suggestions would be appreciated, as this is not cool, and I have clients projects that I don’t want to mess up.

Thank you!

Chadfish

8 Core Mac Pro
9 GB 667 Mhz DDR2 FB-DIMM
MOTU Traveler Firewire Interface
Mac OX 10.4.11 Tiger

My Music: http://www.humboldtmusic.com/chadjohnson

My Fun Video: https://www.youtube.com/chadfish

[Ethan Benninger]

I did a number of things to try and solve this issue. I did a fresh install of Leopard and FCP on a secondary internal SATA drive, thinking that it might wipe out the problem I was having–it didn’t. I also copied my project off my partially full (50-60%) external HD, onto my now nearly empty internal SATAII drive. No dice–Still slow, out of sync audio. I ended up uninstalling and reinstalling FCP a number of times, and the version that I have now (and everything is working currently) is 6.0.5. I think that going to 6.0.6 may have caused the audio problems. I hope that this helps, and that you are able to resolve your issue, cause it’s darn frustratin’!

Dual 2.0 GHz PowerPC G5, 4 GB DDR SDRAM, ATI Radeon X800 XT

[Chad Johnson]

Hi Ethan!

Simple Fix: Trash your preferences. I have had the 6.6 update for a while. It is not the issue.

There are four files to trash when trying to trash the preferences.

workstation>Mac HD>Users>Workstation>Library>Preferences>com.apple.FinalCutPro.plist

workstation>Mac HD>Users>Workstation>Library>Preferences>Final Cut Pro User Data>Final Cut Pro 6.0 Prefs

workstation>Mac HD>Users>Workstation>Library>Preferences>Final Cut Pro User Data>Final Cut Pro Obj Cache

workstation>Mac HD>Users>Workstation>Library>Preferences>Final Cut Pro User Data>Final Cut Pro Prof Cache

When you delete these files and restart FCP each of these will be rebuilt.

8 Core Mac Pro
9 GB 667 Mhz DDR2 FB-DIMM
MOTU Traveler Firewire Interface
Mac OX 10.4.11 Tiger

My Music: http://www.humboldtmusic.com/chadjohnson

My Fun Video: https://www.youtube.com/chadfish

[Chad Johnson]

UPDATE:

I’m sorry to say that the damn problem came back. I trashed my prefs – problem fixed when I tested it out. Today I opened an old project – no sound. Before I had slow sound – normal video. So did what I did originally which was to set my Sequence Settings to 44.1k (rather than the default 48k). It at least lets me continue working.

I did an experiment –

1: I exported a clip with the new 44.1k sampling rate – video plays fine, but I don’t know if the video file now is off NTSC standards as I can’t tell the audio sampling rate through “Get Info”

2: Even though I heard no sound at 48k, I exported and the video plays back normal, but the audio plays back slow.

Maybe it does have something with the latest update before the “New” Final Cut Studio suite update to FCP7. I just wish I could figure out what is tweaking my audio. Could old projects screw with my newly built prefs? Hard to say.

Let’s keep up the conversation to hopefully find a way out. If I can’t export NTSC video I’m screwed as far as work goes.

Chadfish

8 Core Mac Pro
9 GB 667 Mhz DDR2 FB-DIMM
MOTU Traveler Firewire Interface
Mac OX 10.4.11 Tiger

My Music: http://www.humboldtmusic.com/chadjohnson

My Fun Video: https://www.youtube.com/chadfish

[Kyle Thomas]

i am having this exact same problem. did anyone ever figure this out?
i am running FCP 6.0.6 on snow leopard.

[Jason Calhoun]

I’m having the same issue now. Did anyone ever figure out a fix?

[Matt Campbell]

Question, do you have any Blackmagic Design products? I have an Intensity Pro card and this problem happened after I updated to the latest driver. I then uninstalled that driver and went back to previous one. That fixed it for me. Not sure if it will work with you or not.

OS 10.5.5, Mac Pro 2 x 3 ghz quad-core intel xenon, 9 gb ram, with BM Intensity Pro card

[Chad Johnson]

If you trash your prefs the problem goes away too.

8 Core Mac Pro
9 GB 667 Mhz DDR2 FB-DIMM
MOTU Traveler Firewire Interface
Mac OX 10.4.11 Tiger

My Music: http://www.humboldtmusic.com/chadjohnson

My Fun Video: https://www.youtube.com/chadfish