Become a Site Supporter and Never see Ads again!

Author Topic: Zero byte .wav file - how to restore?  (Read 6642 times)

0 Members and 1 Guest are viewing this topic.

Offline rigpimp

  • Trade Count: (14)
  • Needs to get out more...
  • *****
  • Posts: 2900
  • Gender: Male
  • Jarts don't kill people!
Re: Zero byte .wav file - how to restore?
« Reply #15 on: December 13, 2021, 04:51:16 PM »
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
Mics: Schoeps MK5 G MP, Schoeps CCM 4 Lg MP, Schoeps MK8 MP, nBob cables > PFA, KCY 250/5 > PFA
Pre/A>D/P48: Sonosax SX/M2-LS, E.A.A. PSP-2, Naiant Tinybox, Neumann BS48i-2 (for sale)
Recorders: Sound Devices Mixpre-6, Sony PCM-M10, Sony PCM-A10
Playback: Jolida 1501 Hybrid > McIntosh MX 130 > Von Schweikert VR-4 JR, or Creek OBH-11 > Sennheiser HD700
http://archive.org/bookmarks/kskreider
https://www.concertarchives.org/kskreider (work in progress)
https://archive.org/details/thespps

Offline daspyknows

  • Complaint Dept.
  • Trade Count: (1)
  • Needs to get out more...
  • *****
  • Posts: 8965
  • Gender: Male
  • Don't ask, don't tell, don't get get caught
Re: Zero byte .wav file - how to restore?
« Reply #16 on: December 13, 2021, 05:02:57 PM »
Tried Recuva and shows 0 byte file but nothing more.  Only files on the card are the other Wav files.  Not finding anything hidden.

Offline rigpimp

  • Trade Count: (14)
  • Needs to get out more...
  • *****
  • Posts: 2900
  • Gender: Male
  • Jarts don't kill people!
Re: Zero byte .wav file - how to restore?
« Reply #17 on: December 13, 2021, 05:18:40 PM »
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.
Mics: Schoeps MK5 G MP, Schoeps CCM 4 Lg MP, Schoeps MK8 MP, nBob cables > PFA, KCY 250/5 > PFA
Pre/A>D/P48: Sonosax SX/M2-LS, E.A.A. PSP-2, Naiant Tinybox, Neumann BS48i-2 (for sale)
Recorders: Sound Devices Mixpre-6, Sony PCM-M10, Sony PCM-A10
Playback: Jolida 1501 Hybrid > McIntosh MX 130 > Von Schweikert VR-4 JR, or Creek OBH-11 > Sennheiser HD700
http://archive.org/bookmarks/kskreider
https://www.concertarchives.org/kskreider (work in progress)
https://archive.org/details/thespps

Offline daspyknows

  • Complaint Dept.
  • Trade Count: (1)
  • Needs to get out more...
  • *****
  • Posts: 8965
  • Gender: Male
  • Don't ask, don't tell, don't get get caught
Re: Zero byte .wav file - how to restore?
« Reply #18 on: December 13, 2021, 05:23:53 PM »
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. 

Offline if_then_else

  • Trade Count: (0)
  • Taperssection Member
  • ***
  • Posts: 404
Re: Zero byte .wav file - how to restore?
« Reply #19 on: December 14, 2021, 02:05:47 AM »
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.

Offline daspyknows

  • Complaint Dept.
  • Trade Count: (1)
  • Needs to get out more...
  • *****
  • Posts: 8965
  • Gender: Male
  • Don't ask, don't tell, don't get get caught
Re: Zero byte .wav file - how to restore?
« Reply #20 on: December 14, 2021, 02:47:20 AM »
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.

Offline if_then_else

  • Trade Count: (0)
  • Taperssection Member
  • ***
  • Posts: 404
Re: Zero byte .wav file - how to restore?
« Reply #21 on: December 15, 2021, 10:58:59 AM »
@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?

 

RSS | Mobile
Page created in 0.055 seconds with 29 queries.
© 2002-2022 Taperssection.com
Powered by SMF