Adam Bankhead
Forum Replies Created
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OK- it SEEMS like (and I have almost no idea what I’m talking about) if I can figure out HOW MANY bytes my TASCAM DR-40 records the channels sequentially, and if I could find the EXACT START of that data, I could use the split option in HXD to split the data accordingly, and save as a new file. Forget about rewriting the header- now that I have the data in one continuous STEREO stream, I can import THAT into Audacity and recover it using the method that everyone knows how to do (above). Right?!
If I only knew how to do this!!!!!!!
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WOW Karl. I knew it was possible. Thank you for figuring this out. I’m several hours into whatever hex editing online tutorials I can find, and my mind is still blown trying to figure this out. I zeroed out another SD card, did a test recording with the same settings, and I don’t even know where to begin. I THINK I can guess where the audio information starts, and maybe where the header info is, but I’m just guessing. The fact that the rest of the data are zeroes makes it slightly easier, but I still have NO IDEA how to interpret this data. And forget about interpreting the data on the original SD card that is surrounded by data from previous recordings, etc.
Furthermore, I don’t know HOW you determined how many bytes of each channel your recorder writes sequentially, or how you managed to further split the data into the mono channels, or how you found the data on the original card where the header was written improperly or not at all… I don’t know how you did any of this. 5 hours into hex tutorials, I’m still drowning in a sea of gibberish characters. You are a crazy mad hacker genius.
I’d love to be able to do this myself, but this might be more of a time investment than I can afford. Can I pay you to do this recovery for me?
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Just want to give this particular subject a bump. I’ve done this type of audio recovery a few times, and it’s been great, but only in Stereo mode. I’m still unable to find a way to solve the “echo” problem in 4CH mode. I’m about to send either a card or a disk image to a professional file repair service to see if I have any luck there…
The fix here is awesome, but doesn’t work if the recorder was operating in 4CH mode.
Has anyone out there figured this out???????
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Anton, were you ever able to find a solution to 4 channel audio recovery? I would be extremely grateful for a reply. Thank you!
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Michael, I’m trying to solve the same issue with audio recovery of 4 channel recording. I input all the correct parameters, but get echoing, etc… Were you ever able to find a solution? I would be extremely grateful for your response. THANK YOU!
Adam
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Agreed. Auto-keyframing is nice to have as an option, but to have it as default behavior with no way of disabling is truly baffling.
Also, while I’m at it, I’m REALLY missing being able to map “lock audio and video tracks” to keyboard.
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It might be a result of mixing 41kHz and 48kHz audio on the same timeline. Hopefully that solves it…
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Just wanted to chime in here. This has been happening to me for long enough now (through multiple OSs and FCP versions) that I’m starting to be seriously concerned about long-term hearing damage.
It happens several times a week, without warning. I spastically hit the space bar/tear the earphones off my ears. HOLY MOTHER OF GOD it’s loud.
Applying a luma filter seems odd- I certainly can’t be doing that preemptively with every single clip I edit for the rest of my life. I’ll just learn/switch to Avid if that’s the case. I’m not so sure it’s linked to video, though.
When this happens, I break and re-establish the link to the clip’s render file or source clip. I apply an audio filter to the offending clip (one complex enough to give a red render bar), and then delete the filter. Hell noise gone.
But, like others, I have no idea when or why it happens. It’ll play fine several thimes through, then all of a sudden, KSHHHSCREEEECH!!!! It must be 200+ db.
This really, really sucks big time. I wish we had an answer. -
Thanks for the reply, Doug.
I should have been more specific with my workflow. I wasted about 2 weeks trying to get menu highlights to show up on a Mac, only to find out that, indeed, menu button “selected” states will not show up. On a Mac, that is, and only when trying to author Blu-ray.
I must have proper menus, so I have now switched Encore for PC. Since I do not have a PC, I am using Encore on Parallels. It was on Parallels that I get the “error 6” message (which the msxml install seems to have fixed.)
I get error messages (can’t remember what- it was something completely uninformative) when trying to burn straight out of Encore, so I make a BDMV folder, then take that into Toast 9 with the plug-in. Super easy with Toast- no problems at all.
I did fix my “export file not found” problem, but only by rebuilding the project from scratch a 3rd time. Again, I always use elementary streams with AC3 audio. (DVDSP actually likes AC3 better, as well.) The assets I used were not renamed in the last build. It was one of a 7-DVD (sorry-“BD”) set with similar menus, and the “save as” and “relocate media” commands from within Encore worked fine for all the other discs, so I really can’t say what I did differently.
But I haven’t burned it yet- I just got through the BDMV build without error. One time I burned a BDMV and it played in a set-top player, but had “media offline” written all over in place of where the video asset was supposed to be, so I don’t know if THIS one actually built properly- I’ll post again after I burn it.
For Mac users especially, this whole business about not being able to preview your build before actually burning a disc really blows. The way I understand it, it was actually the Blu-ray committee- the people who decide all the details of the BR specification, that have made it impossible for non-HDCP compliant systems (that would be all Macs and most PCs) to play Blu-ray content. And even if you had an HDCP-compliant system, they have made it illegal for software manufacturers to allow users to play BDMV folders straight off of a hard drive. They assume the only reason anyone would have a BDMV folder on their hard drive is if they ripped it illegally.
Having to deal with 1 crappy program with no alternative on top of all that makes for an increase in the suicide rate. I feel we all should be compensated for doing Adobe’s beta-testing. These problems are wasting many people’s time and money. And sanity.
Anyone with better or additional knowledge of this subject please chime in.
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Doug-
I’m glad you fixed the issue. But I am working with elementary streams and separate audio files. I’ve always done this. I’ve also rebuilt the project twice, and no matter how I rename, relocate, or replace footage, I always get this “missing export file” error. I believe it’s something with the encode, but not necessarily an elementary vs. program stream issue. I have gotten several successful burns using identical encodes out of Compressor, and identical menu structures so I’m really clueless as to the problem here.
Just my 2 cents.
-Adam