Hi All,
So John started this thread on my behalf.. I had emailed him about the issue (he's like the Obi Wan KenOkiDog of tech questions for me...).
To fill you in on the solution... I did a search of the L-2 archives and found the references to Waveagent in some 3 year old posts. Waveagent worked as advertised and everything synced up.
In the meantime, my AE also tackled the problem from home and found an equally simple solution. She opened the original .wav files from the external recorder in Quicktime Pro, then simply exported them at 48 K. This also eliminated the drift.
This morning, we did a test of Bogdan's suggestion, and imported one of the original files with the sample rate conversion option turned off. This did not work... we still had major audio drift.
In any case, thanks everyone for the help. We're back in business and the AE is happily grouping away in the next room.
Best,
Steve Pomerantz
www.stevepomerantzeditorial.com
--- In Avid-L2@yahoogroups.com, Bogdan Grigorescu <bogdan_grigorescu@...> wrote:
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> While the suggested principle is correct, in your particular case(23.98 video with 48048 audio) you probably just need to turn off 'Sample rate convert source to project rate' under Import>Audio, which is ON by default.
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> cheers,
> BG
> www.finale.tv
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> --- On Tue, 6/25/13, johnrobmoore <bigfish@...> wrote:
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> From: johnrobmoore <bigfish@...>
> Subject: [Avid-L2] Re: Canon 5d shot at 23.98 with audio recorded at 48,048 syncing?
> To: Avid-L2@yahoogroups.com
> Date: Tuesday, June 25, 2013, 11:01 PM
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> Here's the suggestion I got offlist:
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> John;
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> Once an audio file has been recorded in the field with more samples, you need to restamp it as 47954 with an application like WaveAgent from Sound Devices (free for both OSX and Win)
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> Once the files have been set to 47952, Avid will try to compensate and will go back into sync for your camera originals at 23.976.
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> Do this on a copy of the files to make sure you got it right.
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> --- In Avid-L2@yahoogroups.com, John Moore <bigfish@> wrote:
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> > I don't have all the specifics but they shot Canon 5D at 23.98 and audio sampled at 48,048Hz. Now in avid the audio drifts. I'm trying to help remotely so I don't have all the specific details but IIRC in an old meridian avid you could do audio pullup/pulldown through the analogue inputs only. I believe that has changed so files can be pulled up or down when importing audio files into an Avid project. This is not a workflow I've worked in can someone remind me if this is possible at all or if it's possible in a standard 23.98 project or does it have to be a film 23.98 project or is there even a difference these days. Most of my generic knowledge is based on information back when there was only the NTSC 24 frame project days of meridian systems.Â
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> > If Avid won't do the audio conversion would QT change do anything in this regard or is there a way to do an external sample rate conversion with an external program. I'm not sure what the format of the separate audio files are but I'd bet it's from one of the cheaper sound recording systems. TIA
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