[NFBCS] Repairing damaged audio files

[Doug Lee]

The short answer is that it's probably a difficult task that would require some pretty thorough examination of, and perhaps tweaking with, the data in
each file. Wav files are the simplest of the formats you mentioned, assuming they are not MP3 files disguised as wav files (that happens sometimes). Some media players will do their best to play wav and mp3 files even if
they are damaged; so I'm slightly surprised that you get no sound at all from those. I know less about the wma file format.

If these are not private in nature and we can work out a means, I would be willing to look at them to see if I can get anything out of them or at least figure out what's stopping them from playing. I have acquired a bit of
knowledge of sound file formats recently while writing a repair tool for TeamTalk Opus Ogg files (http://www.dlee.org/taff/ ).

On Sat, Jul 11, 2020 at 03:52:21PM +0000, NFBCS mailing list wrote:
I have a small number of wav & mp3, and 1 wma file that appear to be damaged - none of my media players or editors will play them.
I've tried using Audacity with the ffmpeg add-on, but it seems I'm not doing something right, and haven't been able to recover the audio.
Is there someone who could talk me through the recovery process like the lost newbie I am?
Thanks

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-- 
Doug Lee                 dgl at dlee.org                http://www.dlee.org
Level Access             doug.lee at LevelAccess.com    http://www.LevelAccess.com
"It's not easy to be crafty and winsome at the same time, and few accomplish
it after the age of six." --John W. Gardner and Francesca Gardner Reese