Topic: Zero byte .wav file - how to restore?

[rigpimp]

If there is a file on the card back it up and host it for others to try. 
If there is no file on the card then try Recuva. https://www.ccleaner.com/recuva

[daspyknows]

Tried Recuva and shows 0 byte file but nothing more.  Only files on the card are the other Wav files.  Not finding anything hidden.

[rigpimp]

Tried Recuva and shows 0 byte file but nothing more.  Only files on the card are the other Wav files.  Not finding anything hidden.

Sounds like the recorder errored out while recording, most likely shortly after starting.  Boo, hiss.

[daspyknows]

I checked about 45 minutes into the set and the red record light was on and 20 minutes later it ended with red light flashing and a file error message.  Couldn't do anything but turn off recorder by removing batteries. 

[if_then_else]

Can you create an img file of your SD card (e.g. using a low level copy tool like dd on Linux/UNIX) and send me the file along with the information about the original bit depth, sample rate and the number of channels? I've tried out a couple of different tools on Linux and Windows recently and chances are that at least one of them might work.

[daspyknows]

Can you create an img file of your SD card (e.g. using a low level copy tool like dd on Linux/UNIX) and send me the file along with the information about the original bit depth, sample rate and the number of channels? I've tried out a couple of different tools on Linux and Windows recently and chances are that at least one of them might work.

Sure.  Thx.  Will do that tomorrow.

[if_then_else]

@daspy:

After having fixed the PCM-WAV header, it seems that after 4'55'' there is data corruption.

In other words, playback isn't stalling (as originally suspected by me) but the recorder appears to have recorded the same sample multiple times to the SD card. Which would explain why the file is so big (4.2 GiB).

It's exactly the same picture when I try to load the RAW file into Samplitude.

Cf. the screenshots below. Do you still want me to send you the WAV or FLAC file with the fixed header even though the problem is a lot more fundamental?

[daspyknows]

It happened again at Railroad Earth at Brooklyn Bowl.  I have cloned the SD card but since I am on the road I will use other recorder and card.
.   
I reordered opener using new card.  No issues.  At end of first set I tried to stop recorder and instead it went into pause and only way to stop it was to pull batteries.  2nd set ran fine.  I have cloned card to a new SD card so they match.  Just need to figure best way to do this or ask for help from a volunteer.  Anyone feel confident?.

[ero3030]

Yep, when the video talked about using VLC player, I took a left turn and opened the recovered file in CD Wave, instead.

Saved it as a 24 bit 48kHz .wav perfectly.

Thanks for the help, I'm bookmarking this.





OH, and apologies our engineer last night.  I guess 0 byte files happen on Behringer equipment, whether you are careful or not.

Learned something today.

TS rules. 

Very slick. Marking this. Thax

[Scooter123]

I wonder if Spy's problem is a defective DR2d or a defective card.  Sounds more like a recorder issue. 

[daspyknows]

Maybe.  Both will be retired.  Not having luck with the clone of the card but still have the card in recorder.  Guess I need to keep trying once home.

[rigpimp]

I recently used AI to create a windows batch file tool that repairs FLAC headers. I'm sure it's easy to make one to fix the wav file too. Can you hightail the image file to me?

[daspyknows]

I recently used AI to create a windows batch file tool that repairs FLAC headers. I'm sure it's easy to make one to fix the wav file too. Can you hightail the image file to me?

will do

[rigpimp]

I recently used AI to create a windows batch file tool that repairs FLAC headers. I'm sure it's easy to make one to fix the wav file too. Can you hightail the image file to me?

will do

I took some time to whack at this file. I threw AI at it and developed a batch file to run it through several levels of repair using FFMPEG, but nothing worked.

I thought there was a tool here somewhere that Gordon Gidluck posted that repaired 0-byte files, which I thought I shared on FB, but it was a file-splitting command instead. You used to type in how many channels, bit depth and sample rate and it would append -fixed at the end of the repaired file. I will go dig and see what I can come up with.

[vanark]

I thought there was a tool here somewhere that Gordon Gidluck posted that repaired 0-byte files, which I thought I shared on FB, but it was a file-splitting command instead. You used to type in how many channels, bit depth and sample rate and it would append -fixed at the end of the repaired file. I will go dig and see what I can come up with.

I think this is what you are referencing - fixwav.

https://spaces.hightail.com/receive/GgFYcheDWp