IPB

Welcome Guest ( Log In | Register )

Please help me salvage recorded MP3 that seems to have been corrupted, [TOS #6: was “Help with file playback issue” in General Audio]
kwdelre
post Jan 6 2013, 01:20
Post #1





Group: Members
Posts: 11
Joined: 6-January 13
Member No.: 105623



Hello everyone,

I really need some help here. I recorded a meeting using a MemoQ Pen Recorder MQ-94. It records in MP3 format and has worked in the past. Well, after the meeting I went to download it from the flash drive and the file will not playback on anything. (I've tried all I can on both windos and Mac) The file itself appears to have recorded because it is a 17 mb file, so I know it wrote something. There is clearly an issue with the recorder itself since it used to work fine, but what I need to do is try to recover this file.

When attempting to open the file on a Mac it does nothing. On windows it gives me a general playback error as if it didn't recognize the codec.
The only program I was able to get the file to even open in was Audacity. In Audacity the file appears as a 1.5 sec clip and when I play it, it sounds like the entire hour long meeting in a second.

I tried two programs to repair the file without any luck. (All Media Fixer, and MP3 Repair Tool)

I can't figure out anything else to try at this point to recover this file. Any help would be greatly appreciated.

-Will
Go to the top of the page
+Quote Post
 
Start new topic
Replies
splice
post Jan 11 2013, 13:00
Post #2





Group: Members
Posts: 127
Joined: 23-July 03
Member No.: 7935



From looking at the sketchy info online, it looks like my guess about the header format is correct.
The MQ-94 is a 4 GB device with a recording time of 284 hours. That's almost exactly 32K bitrate.
The frame size is 288 bytes for MPEG 2.5 Layer III 32K bitrate 8 KHz sample rate, too.

Will,
Have you successfully played recordings made with this device before?
We really need a piece of the original file - preferably the first 512K bytes or so. You should be able to put it in the uploads thread, I'll leave it for someone else to advise you because I've never done it. There are various free utilities around which allow cutting a section out of a file.

Edit: Try HJSplit (http://www.hjsplit.org)
Specify 512 KB as the split size. It will generate a set of output files ending in .001, .002, .003 etc. Just upload the one ending in .001.

General question for the peanut gallery:
Does WMP support MPEG 2.5? Does Foobar2000?

This post has been edited by splice: Jan 11 2013, 13:46


--------------------
Regards,
Don Hills
Go to the top of the page
+Quote Post

Posts in this topic
- kwdelre   Please help me salvage recorded MP3 that seems to have been corrupted   Jan 6 2013, 01:20
- - DigitalMan   You could try using the program Foobar2000. Right ...   Jan 6 2013, 04:59
- - splice   ... but remember to make a copy of the file first,...   Jan 6 2013, 11:26
- - DonP   QUOTE (kwdelre @ Jan 5 2013, 19:20) . In ...   Jan 6 2013, 13:50
- - kwdelre   Hi everyone. Thank you very much for the reply. I...   Jan 9 2013, 06:56
- - mjb2006   Get xvi32 (free binary editor) and open the file i...   Jan 9 2013, 14:01
- - kwdelre   QUOTE (mjb2006 @ Jan 9 2013, 07:01) Get x...   Jan 10 2013, 01:39
- - mjb2006   xvi32 couldn't open the original? Now that is ...   Jan 10 2013, 03:04
- - kwdelre   QUOTE (mjb2006 @ Jan 9 2013, 20:04) xvi32...   Jan 10 2013, 04:20
|- - splice   QUOTE (kwdelre @ Jan 9 2013, 19:20) ... ...   Jan 10 2013, 07:15
- - mjb2006   In xvi32 you can do a search and replace for that ...   Jan 10 2013, 08:49
- - kwdelre   I will get an audio sample ready to post. Wanted ...   Jan 11 2013, 01:38
- - kwdelre   I may not have file upload privileges yet. Or, I s...   Jan 11 2013, 02:00
|- - Dynamic   QUOTE (kwdelre @ Jan 11 2013, 01:00) I ma...   Jan 11 2013, 11:10
- - Aleron Ives   That error means that although the file has the MP...   Jan 11 2013, 02:52
- - mjb2006   nm.   Jan 11 2013, 07:55
- - splice   From looking at the sketchy info online, it looks ...   Jan 11 2013, 13:00
|- - Dynamic   QUOTE (splice @ Jan 11 2013, 12:00) Does ...   Jan 11 2013, 14:50
- - kwdelre   Okay, I was able to upload a sample file from the ...   Jan 11 2013, 21:37
|- - splice   QUOTE (kwdelre @ Jan 11 2013, 13:37) Okay...   Jan 12 2013, 00:39
- - mjb2006   Turns out the first byte in each frame header vari...   Jan 12 2013, 01:56
- - kwdelre   QUOTE (splice @ Jan 11 2013, 17:39) Aha.....   Jan 12 2013, 04:11
- - kwdelre   I am beyond words right now. I cannot thank you al...   Jan 12 2013, 04:52
- - mjb2006   Still, I think your pen is broken   Jan 12 2013, 11:19
- - kwdelre   QUOTE (mjb2006 @ Jan 12 2013, 04:19) Stil...   Jan 12 2013, 20:37


Reply to this topicStart new topic
1 User(s) are reading this topic (1 Guests and 0 Anonymous Users)
0 Members:

 



RSS Lo-Fi Version Time is now: 21st October 2014 - 08:14