Topic: OMG....Help me please.

[Charlie Miller]

So I bought my fiance a R-09 for Christmas and we finally used it tonight. We made a great recording of Tom Petty at the Hollywood Bowl. I accidentally had the track split set to 2GB. The first 15 minutes sounds great, but after that, it's all noise. I read the FAQ and saw the edit thing to add 4 bites to the header, but i don't have the program. Can anyone help me?

[rustoleum]

I've been plugging this program around here a lot lately.  Sounds like you want Gordon Gidluck's wonderful little audiohack to repair the header.

http://live2496.com/audiohck.zip

[gewwang]

I never had this problem with the R-09 but I did have it with the R1. IIRC, the header issue affected the whole file. I don't remember hearing about the problem occuring somewhere in the middle of the file.

[Gutbucket]

You could also probably import the file as raw data into an audio editor program and re-save with a new header.  New firmware came out recently with 16 & 32 GB SDHC support - it doesn't address your issue speciffically but is probably a good idea to upgrade it anyway.  It's painless.

[Charlie Miller]

I was using v 1.31 which I believe is the latest firmware. I tried the fix but it doesn't seem to work

[KenH]

Charlie, this is fixable. I had it happen before, and it freaked me out temporarily. This was using Tascam HDP2 files also w/ a 2Gb split.

To find out the issue, you can use "shntool info" and "shntool len" and review the output.

If you have multiple 2Gb .wav files, I just use Adobe Audition to append them. No issues after saving the files.
- open the first file
- append the 2nd file, etc, until you have all the files appended
- save as

I also had succeess opening up one of these wav files w/ Audacity freeware, and then just saving the file thereby fixing the header automatically.   For Audacity,
- Edit>Preferences>Quality [24 bit, 96000Hz] and File Formats.Uncompressed File Format> other...>signed 24bit PCM. Click OK
File->Export as WAV...>filename

Hope this helps.



/Ken

[drewloo]

Charlie, have you tried opening it in CDWave?  I thought some people had luck trying that first.  If it does play OK in cdwave then just save it using the alternate 24-bit option.

[flipp]

One other option you might try is pigiron's wave header repair utilty, availale @ http://taperssection.com/index.php/topic,72936.0.html Windows and Linux version in post 1, MAC version in post 35.

Not sure your problem is just the header though. If the previous suggestions don't work, you'll only be out a little time to see if this does.

[T.J.]

sorry if this is a stupid question, but what does this have to do with track splits set @ 2 gigs?

[Craig T]

sorry if this is a stupid question, but what does this have to do with track splits set @ 2 gigs?

probably nothing.  if I understand this correctly, the recording went from fine to static or white noise about 15 minutes into the first file and continued as such for the balance of the recording.  this brings back nightmares from my early attempts at PDA recording with the PDAudio-CF card.  I've experienced this exact problem.  The good news is that it should be recoverable, but you'll probably lose a bit at the transition between good/ugly.  Gordon Gidluck (live2496) is the man when it comes to trouble-shooting these errors - maybe he'd be kind enough to lend a hand.  I wish I could help, but it's been too long since I've had to deal with this type of thing.

good luck.   

[KenH]

sorry if this is a stupid question, but what does this have to do with track splits set @ 2 gigs?

I guess that the recorder doesn't complete the suddenly closed file when it's split, so it looks truncated to some software.

I've had the problem where, when I opened up a 24/96 wave file, it appeared to be severely truncated and only had like the first 15 mins or so, then nothing, flat line or so afterwards. Sounds exactly like the original problem.  But I don't remember the exact issue or solution other than what i already posted. 

Hmmm, I think the problem maybe was with concatenated wavs where wav file size > 4gb or so. Open up a large file like that in Audacity or CDWAVE, and it can't handle it, showing only part of the wave. Yeah, this might be it.

Haven't had a problem since using Audition though, which can handle large files and even warns that other apps might not be able to read it when saving a large appended wave file.

/Ken

[Charlie Miller]

So I guess I'm getting stupid with this, cuz I can't seem to fix it. Is there anyone who wants to try? I'll send you the files on a DVD.

+t to all

[SmokinJoe]

2gb split doesn't occur at 15 minutes at any kind of normal bitrate. Split should occur at something like 1hour 52minutes at 24/48 if I remember correctly.

[live2496]

I took a look at this file. Unfortunately the pcm audio data cannot be recovered.

I imported the data with 5 different offsets (in Samplitude) to see if I could make any sense of it. I saw a repeating pattern for most of it. It's just random data.

I speculate that it had something to do with the SD card, maybe formatting. Maybe it wasn't actually writing data, just advancing the file pointer.

[ozarkbilly]

I accidentally had the track split set to 2GB.

Is this a bad idea?  This is where mine has always been set!