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-   -   Inexpensive audio solutions? (https://www.dvinfo.net/forum/canon-eos-full-frame-hd/144710-inexpensive-audio-solutions.html)

Evan Donn March 10th, 2009 02:44 PM

Did a couple hours of dual-system interviews this weekend with the H4 and ran into the sync problems others have noted in the past - I got a steady drift of ~2 frames/minute across the board (24bit/96khz).

It wasn't a big deal but did affect workflow as I was under a pretty tight deadline. Normally I'd just merge the audio & video into a new clip (using FCP) but that wouldn't work here. I basically had to create a new sequence for each clip, sync the slate, then split the audio every minute and shift the remaining audio 2 frames forward.

This meant I had to edit with nested sequences which is a little more cumbersome - you have to drag from the project window to the viewer so the sequence doesn't open in a new tab, and you can't see audio waveforms on the nested clips.

With more time I think the workflow is to pre-calculate the exact drift rate, stretch the audio file by the correct percentage, and then use merge clips. I'm hoping this isn't an issue with the new H4n.

Ray Bell March 11th, 2009 07:05 PM

Quote:

Originally Posted by John Saunders (Post 1020468)
I just got the sony PCM-D50 and it works great. It dosn't have XLR inputs though. This isn't a problem for me since I use a sound devices MixPre as the preamp. In my opinion no sub $1000 recorder with built in preamps is going to come close to the quality of the MixPre. It is a little bit of a hassle to have 2 boxes but its a lot cheaper than the Sound Devices 702.

The Sony PCM-D50 does have an optional XLR input (powered).. but the option is not cheap... but you do get great results from either the XLR inputs or the builtin mikes...

http://www.bhphotovideo.com/c/produc...c_Adapter.html

Chris Barcellos March 11th, 2009 07:36 PM

I started another thread on this, but I though you audio gurus would like to hear and comment on this test using the Beachtek DXA-4 adapter. I uploaded this simple test.

http://www.dvinfo.net/media/canon/5d2/soundtest.mp3

Thoughts.

Ray Bell March 11th, 2009 07:58 PM

double post, this one erased...

John Saunders March 15th, 2009 07:49 AM

Quote:

Originally Posted by Ray Bell (Post 1026295)
The Sony PCM-D50 does have an optional XLR input (powered).. but the option is not cheap... but you do get great results from either the XLR inputs or the builtin mikes...

Sony | XLR-1 XLR Mic Adapter for PCM-D1 and PCM-D50 | XLR-1


Yeah the adapter is like $500 I looked at it but figured the mixpre preamps would be better


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