What format are your audio files. AE works best with .wav files. If you're using something else convert them and give it a try. MP3's are very problematic in CS3
Hi. Thanks for the suggestion.
I'm using aiff files.
I'll try a conversion test.
Earlier in the process of doing this project, things worked OK with an occasional crash. As the project got bigger it got worse.
Now I can't seem to do anything without crashing as soon as I do a couple of audio previews. Is there a limit to the number/size of audio layers?
Do you know if pre-composing audio creates problems?
Precomposing shouldn't hurt you, nor should the number of audio source layers. What is the duration of your "audio preview" set to in your application preferences? I would suggest hiding the waveforms unless you NEED to see them, and then maybe expanding only the waveform for the layer you need to tweak (one at a time) as possible performance enhancements. Are the .aif files you're using stereo (2 channel)?
- currently, the audio preview is set at 08:00. I usually set it at around 15:00
- I've tried hiding the waveform and it doesn't stop the crashing...
- the .aiff files (that's the extension on mine) are Stereo, 44100Hz, 32 bit float
Any clues from the above info?
Some people have suggested using/converting to wav files. aybe I'll try that.
The audio I'm using is, system auudio, exported from Audio Hijack Pro. There's no .wav option - only mp3, AAC, Apple Lossless (.m4a), or AIFF.
I can convert all the audio files to .wav if necessary in an external program, or I can use one of these...
You most likely don't want or need 32-bit float. Try converting them to 16bit 44k (or 48k) stereo (.aif or .wav) files.
The (Audio Hijack) export settings say that I'm exporting in aiff, 16 bit, stereo.
When I brought the file into Audacity to take a loook at it and possibly convert to .wav, it indicated the 32 bit float. Not sure what that's about...
So do you think I should convert all the fliles to .wav? This will really slow down the porcess - but nnot nearly as bad as crashing every 5 minutes...
For whatever reason, despite Hijack's settings, it seems as if it's creating 32-bit float files. Whichever format (.aif/.wav) you choose, you probably want to stick to 16-bit or 24-bit audio. You could use Adobe Media Encoder to set up a batch convert (or After Effects) on the audio files, then replace them in your project. It may be worth the time to experiment.
will try it....
is it ok to use stereo files?
and also, is there a maximum audio preview duration that you recommend?
Yes, stereo files are fine. The audio preview duration is really project and timeline dependent, but I think you're setting of 15 seconds should be fine.
Just a quick follow up - I changed all the files to wavs, re-installed + updated Aftereffects, trashed preferences, and did a host of other things that were suggested on different forums. The comp still seemed to crash.
What worked definitively was that I stopped editing the sound waveforms in s separate related comp timeline that was undocked (and parked on a second monitor). I didn't crash after doing that.
Hope this helps if someone else runs into this problem...
Cheers and thanks for all the advice.
Thanks for the follow up. It sounds like it may be display driver issue. Have you tried updating your video card drivers, & have you tried disabling OpenGL (from inside of AE)?