Chris Hunziker
3
COW Coins
Forum Replies Created
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Almost 2 years later, this articles were very helpful, mainly the elimination process (thanks Chris).
Just to add to it:
I had exported the over one hour project anyway (ignoring the warning). So I opened the shared .mov in QuickTime and played it in fast mode. The threaded red “Missing File” flashed up and thanks to the timecode I could go back to FCPX and find the problem (a missing effect) in no time.Chris Hunziker
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Thank you very much for your kind and generous offer, Karl. The fact is, that in the end I had to finish the concert video without the H4n recording. I had to spend some extra time to beef up the audio that was on the closest camcorder, which went ok (as I cannot compare it to the H4n recording, I don’t know how much better that would have been, but the customer wanted to have the product asap.)
So again, thank you very much and Merry Christmas to you.
PS: I was just disappointed by the reaction of the Zoom Company after I contacted them telling me, that they built in a solution for the H2n but not for the H4n.
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Thanks Karl for this detailed report. It sounds very complicated – and I don’t know, if I could manage to do all this without messing up.
That’s why I think Zoom should write a small software that automates all these steps. Or is anybody out there who could do that? I am sure the demand is there, but I am not able to it myself, sorry. -
Doesn’t have to be. I found on my card lots of older things that I thought I had erased. It’s possible that parts of your file are overwritten, but I’ll give it a try.
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H4n 0kB File restore (for Mac users)
Works for 2-channel files only. 4-channel files seems to be recorded interleaved and (up to now) there is no software to extract the 2 Stereo channels.
(This is a compiled version that reflects my experiences put together from several forums on the internet incl. this one. Thanks to all contributors!)
1. Do NOT record anything on the card after the mishap (power interruption during recording before pressing stop).
2. Copy the whole content of that card to your Mac with an advanced option in Disk Utility (tested in OS 10.6.8 and OS 10.10.5):
2a Plug in your SD card into the card reader so it mounts
2b Open Applications>Utilities>Terminal
2c In the Terminal window (copy and) paste the following line:
defaults write com.apple.DiskUtility advanced-image-options 1
then press return
2d Open Applications>Utilities>Disk Utility
2e Select your SD card in the list of drives
2f Click the New Image button
2g In the Image Format tab select “Entire Device” and have encryption set to “None”
2h Save your disk image to a drive big enough to hold it, preferably in a new folder.
Now you have a .dmg file that you can use for several trials. Do not double-click that file, leave as is.3. Download the Freeware Audacity and install in your Mac https://audacity.sourceforge.net/
4. Open Audacity
4a To open your Card Data use: File>Import>Raw Data
4b Select the .dmg file that you created
4c In the dialog box choose the appropriate figures (depends on how you recorded in H4n) e.g.– Signed 16-bit PCM (ie 16 bit WAV on the zoom)
– Little-endian [leave as is]
– 2 Channels (Stereo)
– Start offset = 910 [this is the normal size of an H4n header. Also try 0 and 2 if you are at 24-bit, or 0 and 1 for 16-bit]
– Amount to import = 100%*
– Sample rate = 48000* to try out if it works correctly only import a small part. I put 10%
The .dmg file will not be affected. You can try with different settings several times.4d Click OK and wait.
4f If you find your lost recording, select that section, then use the command “File > Export” and save it under a different file name, with the same settings as your other original sound files.Again: This works for 2-channel files only. I was never able to restore my 4-channel file as neither Zoom USA nor Zoom Japan could help me “un-interleave” the raw 4-channel data.
Hope that helps
Chris -
The real problem seems to me to be the interleaved file you get from recovering a four channel recording with Audacity (import raw file), which is like an echo about every three seconds.
If somebody finds a solution to “un-interleave” the file then we can save the lost files.I contacted Zoom Japan, but didn’t get a solution (up to now). Still trying, because on their website they claim:
Data Recovery
The H2n’s Data Recovery feature automatically repairs corrupted files—something that can happen if power is interrupted during recording or if an SD card is removed during a writing or editing procedure.I know this is for the H2n and not the H4n. But if they have it, why not integrate it in a firmware update for the H4n.
Probably if several other users put pressure on them … please contact them at info(at)zoom.co.jp———————–
PS: I put together a solution for 2-channel recordings here: https://forums.creativecow.net/thread/30/867648
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Again several weeks since the last “revival” of the thread and another desperate attempt to save a 4 channel 0 byte recording. Isn’t there anybody out there, who can help with those echo files? Somebody from Zoom?
Please!
Thanks in advance
Chris -
Still, after all those months (over 2 years) I come across the same problem. But now a friend pointed me in the right direction: A prg called MP4Tools (https://www.macupdate.com/app/mac/39246/mp4tools) can do just that.
Just in case, anybody else out there had the same problem … -
Thanks again, John
It was quite a long project, so it took some time to create a master file, but your workaround works well.
Of course I still hope, a 10.0.9 version will soon be available and solve the problem.On another note: Is it advisable never to turn “render in background” on and only render the final product or even let FCPX render automatically while exporting?
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Just experienced the same error -1 share problem. So I did what you wrote. It is exporting at the moment, but isn’t it supposed to be rending first? The orange lines (unrendered clips) are still there.
Is Apple aware of the problem?
Thanks for your input
Chris