FCP 7 audio

[Fred Raimondi]

It depends on how many tracks you have going at once. You’ll notice that the place that probably needs rendering is the area of the timeline where there are more tracks than other places in the timeline. I’m doing a project right now that has lots of audio tracks and most of the timeline plays fine. When it gets to a place where there are 12 tracks instead of 8 I get the red line. I made a keyboard shortcut that renders audio only.

As far as firefox. I’d try turning off ALL the extensions in Firefox. I’ll bet it’s one of those that likes the ram that FCP is using and it has to page to work. Just a thought…..

[Chris Borjis]

could be a sequence setting.

I noticed one that used to be 16-bit is now 24-bit.

that would definitely cause that issue.

[Aaron Smith]

i checked that first…the clip settings and the sequence settings are 16 bit

[Andrew Ross]

You may have a RAM issue.
I notice you are running 5 gig of RAM in a quad core machine, I read that Apple recommend matching RAM to processors so with that in mind you should run a combination of 4, 8, 12 or 16 gig of RAM.

I was running 10 gig so I removed 2 gig and it has increased the speed of rendering considerably.

[Aaron Smith]

I have also seen what you are talking about. I’ve had layers upon layers of audio and sometimes something needs rendered…i can’t explain it, but i’ve just taken it with a grain of salt and rendered the audio and moved on.
however, this is not the case in this situation as i can lay down an arbitrary track all by itself and get the red line. i’m just rendering it right now, but the audio and video clips are all alone on the tracks.

I will try your idea on firefox though…i have a few extensions running that i can turn off…thanks

[Aaron Smith]

hey andrew, never heard of that before, so i’ll check more into it. i have no problem buying a few more gigs of ram, but the previous final cut studio ran without issue in the areas i describe. i’d eventually like to upgrade my ram anyway, but i’m not sure that this would solve the issue. something to talk to apple about though, thanks.

[Nicole Haddock]

I’ve noticed the same shenanigans and here’s what I’ve noticed keeps setting it off- AIFF files in 44kHz instead of 48. This was never a problem in FCS2, but it is now. It’s infuriating but what can you do. Also noticing that when I build a script in Soundtrack, and then use the command in FCP to send the audio track to that Soundtrack script, the audio drifts sync. I’ve had to export the entire sequence to AIFF, import into STP, fix, then reimport the fixed STAP file. This keeps it on sync. Wish I knew where the disconnect was, seriously annoying.

[Mark Maness]

Take a look here:

https://support.apple.com/kb/TS1957?viewlocale=en_US

_______________________________

Wayne Carey
Schazam Productions
https://web.mac.com/schazamproductions
schazamproductions@mac.com

[John Fishback]

48kHz has always been considered the professional sample rate. However, FCP can be set to different sample rates in the audio settings section of the sequence settings. If you import a file with a different sample rate from FCP’s setting, you’ll have to render.

John

MacPro 8-core 2.8GHz 8 GB RAM OS 10.5.5 QT7.5.5 Kona 3 Dual Cinema 23 ATI Radeon HD 3870, 24″ TV-Logic Monitor, ATTO ExpressSAS R380 RAID Adapter, PDE enclosure with 8-drive 6TB RAID 5
FCS 2 (FCP 6.0.5, Comp 3.0.5, DVDSP 4.2.1, Color 1.0.3)

Pro Tools HD w SYNC IO, Yamaha DM1000, Millennia Media HV-3C, Neumann U87, Schoeps Mk41 mics, Genelec Monitors, PrimaLT ISDN

[Chris Borjis]

one more thing you probably already checked, but sometimes DV footage
is actually 12-bit 32khz. that usually causes sync issues though.