[music-dsp] [ot] [macos] post-crash soundfile recovery

[Tim Kreger]

If your running OSX try doing a command line "cp xxx" from the terminal app,
or even a duplicate file from the finder, it may restore the file without
the  busy flag.. A BBedit save file as could also work.



I've had this happen a few times sometimes I can recover others no.

Maybe Norton??

Tim


on 3/8/02 12:46 PM, yon at yon at proptronix.com wrote:

> Hello,
> 
> I've experienced some crashes while recording stuff I'm doing in
> MaxMSP.  Unfortunately, this leaves the file on disk in a weird state.
> It is never closed properly, and the header apparently not updated
> with the new link.  Subsequently the file cannot be opened in
> Peak, MSP, or soundhack (the last will playback the 1st fraction
> of a second).
> 
> So I am trying to figure out how to recover the data, and ask for tips.
> 
> Judging from the file size and innards as seen in HexEdit, is there.
> when I open the file in resedit or filebuddy, its listed as being open,
> which makes sense, but is not good.  I was so far unable
> to modify it with either of these tools in a way that makes it possible for
> the
> file to be opened.  I've tried deleting resources and copying new
> ones, but this doesn't improve the situation, and monkeying around
> with the data in Hexedit didn't help either, as far as I got.
> 
> Attempting to playback by forcing the header also fails.
> In fact, this generates unmapped memory exceptions from MSP.
> 
> I guess the first problem that I must address is to stop the file
> from appearing to be open, and the second is to get at the bytes,
> which (the bytes) should not be a problem, I guess,
> provided that nothing else is corrupted.
> 
> so any anti-corruption suggestions you can offer would be appreciated.
> 
> thank you, yon
> 
> 
> 
> 
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