Audio to aiff

Hello.
I am having a problem when exporting audio to aiff. If I export one track with aiff, and import it again to the same project and the same sequence, the aiff file is longer than the video and it de-sincronizes progressively. If anyone knows where the problem is, please let me know.
thanks...

Take care your AIFF export settings match your timeline audio settings: i.e. 48 kHz/16bits.
Differences in the kHz uses to cause such kind of unsinc issues.
Hope it helps !
Alberto

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Thanks for your replies.
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V1 - A1, A2
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Timeline Video: whichever angle I select
*Timeline Audio* - A1*, A2*
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This is how:
Go to:
'File'
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Enjoy!
P.S. - You didn't need to delete the video but I think that'll be okay.

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Well this workflow should work but I don't know if there might be problems down the road.
Bring all your prores files with the problem audio into compressor. Apply the audio 48k16 bit preset to them. This will create individual aiff files with fcp friendly settings.
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If any of this is not clear or you need help with any of this, post back.
Frankly, you might be just as easy and safer to reconvert all the clips with the audio enabled to 48k16bit in compressor. You could also edit each clip into it's own sequence, replace the ng audio with aiffs made as I described above and then export reference quicktimes to edit with.

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Thanks!
A

Well, there's all kinds of flavors of 'MPEG Video' out there, knowing what you're using would help.
QuickTime Pro can do this, and it's not a waste of $20 to get it.
You can also use MPEG Streamclip to extract the audio to AIFF, then use iTunes to convert to MP3 if that's what you really want.

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I have used I-movie 6.0.3 to create a movie including added an audio track brought in from Itunes, so MP3 files. I then brought it to I-DVD 6.0.4 to burn and saved as a disc image to check it. The disc image looks and sounds correct, but when I burn it to a disc and try to play on either a DVD player or on a computer there is no sound.
Any ideas on what to do?

Hi
Any idea ? - Yes, iTunes Copyright mechanism.
In iTunes - copy out the needed audio as an Audio CD .aiff
Now Use this in iMovie.
The re-edited movie will now work with iDVD and even better so if You DON'T use the
Share/Export to iDVD function in iMovie.
• Just close iMovie
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∆ Now iDVD will do the rendering and so much better.
Save as a DiskImage
Test this with Apple DVD-player
Burn it with Apple Disk Util tool (or rather if You bought it : Roxio Toast™) AND AT x1 speed.
This is important though it gives far less errors (speed can't be set in iDVD 6 - it reads speed from
DVD disc)
I use only Verbatim
I use DVD-R (no +R or +/-RW)
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Hi
May be this applies ?
*No audio on DVD disc.*
Most common origin:
1 Imported audio from iTunes:
• In iTunes copy out as an audio-CD .aiff
• Use this in Your movie project
2 Strange audio formats like .mp3, .avi etc.
• Change them to .aiff. Use an audio editor like Audacity (free)
Before burning the DVD:
• Do a DiskImage (File menu and down)
• Double click on the .img file
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If OK:
• Make Your DVD - or -
• Burn from DiskImage with Apple Disk Util tool - and at an as slow speed as possibly eg x1
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I´m getting an audio/video sync issue when I´m exporting to Pro Res.
I started off in a HDV1080i50 sequence. Audio sampling rate is 48khz. (16 bit depth)
The sequence is less than 20 minutes long. It plays correctly on the timeline.
When I export the sequence for DVD and view it on a set top it plays absolutely fine.
When I export the video to ProRes (422 HQ - I used Export using Quicktime Conversion) and the audio to AIFF, they quickly go out of sync. This was brought to my attention first by the guys who were making the DigiBeta master, and when I view the exported material in a Pro Res sequence I can see it for myself.
The audio and video clips are of the exact same duration.
Possible issues...
Some of the narration was recorded at 44.1 khz. I didn´t resample it (I´m still a learning novice..).. but if that is the issue should it not have affected the DVD as well? All the other audio in the project is 48khz.
Most of the material is HDV1080i50..but one clip used was originally an NTSC clip and therefore a different frame rate. However I converted it to a 25fps clip and this is reflected in the vid rate column in the browser where it says 25fps.
Final point, the exported AIFF files..when I import them back into the HDV1080i50 sequence and play back, it is perfectly in sync.
Any help would be greatly appreciated.

First, yes resample the narration to 48k 16 bit. You will probably be able to reconnect to the resampled files. Usually works for me. That's a simple fix and will probably solve the problem. If it doesn't, you can try to change the codec (compressor) in the sequence settings to prores 422HQ, fully render and see if that solves the problem.
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Audio to aiff

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